MacBook Pro Running Slow? Here’s How To Fix it

macbook pro running slow

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Is Your MacBook Pro Running Slow? Here Are Some Things to Try:

Editors note: this post was originally published in July 2015 and was updated in 2017 to reflect new reviews and experiences.

Any Apple computer will start to slow down over time, but there are steps you can take to keep your MacBook Pro speedy.

Step 1: Make Sure You’re Running The Latest MacOS and Have The Most Recent Updates

As of September 2017, the latest macOS is Sierra. However, High Sierra is coming soon! We recommend preparing your computer for the upgrade and making the jump to the latest and greatest macOS in order to have a fix your MacBook Pro running slow. MacPaw has an excellent tutorial on how to prepare your MacBook Air for High Sierra.

In addition to installing and running the latest macOS, check to make sure you’ve installed all updates. Apple periodically releases bug fixes and software improvements. To check for updates:

macbook pro running slow

  • Open App Store
  • Click on Updates in the upper menu
  • Download and install any available updates

Step 2: Check Your Disk Space and Clean Your Mac

MacBooks don’t come with huge hard drives because of their compact sizes. Dealing with a full hard disk is never fun; nobody wants to delete things every time they download a new movie or album.

How Do You Free Up Disk Space?


To check your free disk space:

  •       Open the Apple icon
  •       Select About this Mac
  •       Select Storage
macbook pro running slow

If you’re running low on storage, we recommend two actions:

  1.     Download CleanMyMac 3 from MacPaw
  2.     Move large files to an external hard drive

CleanMyMac 3 is simple: it rids your MacBook Air of useless junk files, thus giving you more storage space.


Though there are many software programs out there, CleanMyMac 3 is the most popular among the Mac user community. It won reader’s choice awards from thanks to its ability to fix issues for hundreds of thousands of Mac users around the world. Best of all, you can try it for free and see what you think.

If you have many large files (movies, music, photographs, etc.) sitting on your hard drive, you’re likely to see a decrease in speed. An external drive will relieve your Mac from storing huge files, and once it’s not a parking garage, you’ll notice the speed and performance increase. We recommend Western Digital external hard drives for most Mac users.


Step 3: Use Activity Monitor

This free tool from Mac allows you to see which programs pull the most processing power from your machine. Activity Monitor will live among your Mac apps.

macbook pro running slow

To review activity:

  •    Open Activity Monitor
  •    Select View > All Processes
  •    Click  “% CPU” to sort by the percentage of CPU capability used by each program

This information helps identify programs that may cause your MacBook Air running slow.

Programs that pull high percentages of CPU should not run on startup. To check which programs run at startup,

  •    Go to System Preferences
  •    Users & Groups
  •    Login Items

Remove anything you don’t absolutely need by clicking the checkbox next to the item and then minus (-) sign.


Step 4: Consider Hardware Upgrades

Hardware upgrades, though quite expensive, can be the best way to fix a slow Mac. Software tweaks and changes can make a big difference, but you may need more. Upgrading system hardware can lead to significant performance improvements. Consider buying additional RAM for your Mac to help it improve.


Step 5: Reset the System Management Controller

Every MacBook Pro has a piece of hardware called the ‘System Management Controller’. Most people have never even heard of it! Running a reset of this controller can return your Mac to previous levels of performance.

The System Management Controller coordinates battery and heat, LED lights, and other parts of the hardware. Resetting the SMC allows you to re-balance all these factors.

Don’t worry, resetting this controller will not harm your Mac in any way. This won’t delete your content or user settings. It resets the hardware to its original state help your computer run.

How Do You Reset Your MacBook Pro’s System Management Controller?

  •    Turn off your MacBook Pro
  •    Plug in your MacBook Pro’s power cord into the wall socket
  •    Now, hold down the Left Shift + Option + Control + Power Button, simultaneously, for 10 seconds
  •    When you do the above, your Mac won’t power on but will register on reset
  •    Release all keys after 10 seconds and turn on and run your MacBook Pro like you normally do

Please note that when doing this, your MacBook Pro should not turn on. If it turns on, you probably didn’t press one of the keys properly. Do it again until you are able to press down all mentioned keys for 10 seconds without powering up your MacBook Pro.


Step 6: PRAM Reset

Like the SMC reset, resetting the PRAM (Parameter RAM) may fix computer problems.

Resetting your PRAM will not delete the data on your hard drive. You may, though, need to restore system preferences like time, date, and mouse settings. This shouldn’t take too long.

How do You Reset Your PRAM?

  •    Shut down your MacBook Pro
  •    Press the power button
  •    Then, press Command + Option + P + R in combination (all at the same time) before you see the grey startup screen
  •    Press and hold until your MacBook Pro restarts
  •    Release the keys when you hear the familiar startup chime sound that your MacBook Pro makes when it starts up
  •    Your PRAM reset should be complete

Step 7: Too Many Apps Running in the Background

This can easily happen from time to time as we can all forget that apps are still loading in the background. But with constant refreshes, this means your operating system is working much harder than it needs to.


When you can see the apps that are currently running on your MacBook, reorder the list by memory by selecting the Memory tab. High numbers represent that the app is taking up a lot of room on your laptop. Also, don’t remove any app you don’t recognize just because you think you don’t need them; they might have a purpose you don’t know about.

How Do You Stop Apps Running?

  • Visit your Activity Monitor to see what apps and systems are currently loading
  • Scroll through the list and manually quit all that apps that are using power but you no longer need (this doesn’t mean that they’ll permanently delete from your device, just that they’ll stop running)

Step 7: Cluttered Desktop

It’s very easy for a desktop to become cluttered as this is where screenshots and pictures automatically save to. But, if you look at your desktop and see a cluttered mess, it’s time for an organized cleaning session. Not only does your desktop look disorganized like this, but every desktop icon is active which means that your operating system has to refresh and process this the entire time your device is on.

How Do You Organize Your Desktop?

  • Create folders for your files on your desktop so you can easily access them. This makes everything easy to find and is a structured process to declutter your desktop
  • Trash any items you no longer need or haven’t used in the past few months
  • Adjust the settings on your Mac so files don’t automatically download and save to this destination

Step 8: Your Internet Browser Is Full of Junk

The majority of us use our Macs to access the Internet, so if your browser is running slow and overwhelmed, your Mac will be too. If you’re the kind of person who has numerous tabs open at the same time and multiple extensions downloaded onto your device.

How Do You Free Your Internet Browser?

  • Remove Chrome extensions by launching the Internet browser
  • Select the three dots in the top-right corner of the browser and select Tools, then Extensions
  • You’ll then be presented with all the Chrome add-ons that are currently installed on your device
  • If you use Safari for your Internet, launch this browser and select Preferences in the upper menu to choose the Extensions tab
  • Sift through all the extensions you no longer need or use and delete these as they’re taking up memory with no purpose

Anti-Virus Software

Another reason why your Mac might be running slow is because there’s a virus on your device without you even realizing. Many people think that Mac’s are invincible to viruses, but this isn’t the case. Yes, they’re less likely than Window devices, but the chance is still there.

Below are some of the best anti-virus software to download onto your device to both locate and delete viruses, as well as prevent them from accessing your MacBook Pro in the first place.


Bitdefender Antivirus

It’s essential to protect your MacBook Pro to prevent it from running slow and ensure that your personal information and files are kept away from cyber attackers. Thankfully, Bitdefender is easy to install and comes with numerous features. Begin by installing this tool and you’ll have access to all the available features on your screen.

The dashboard makes it stress-free to access all the information and features you need, with two sections on the left and right. Bitdefender comes with simple scanning features to protect your operating system from viruses and unidentified files. Specifically, there’s a total of three scanning options, including Quick Scan, System Scan, and Custom Scan.

To ensure that your connection, IP Address, and location is private, Bitdefender comes with a built-in VPN tool. This means you can change your existing location to another country to hide your IP Address. In simple terms, this VPN tool is ideal for stopping hackers from accessing your personal information and any sensitive files.

As well as protecting your device against malicious files, phishing schemes, etc., you’ll notice that your MacBook Pro runs quicker. This is because Bitdefender can delete any broken files.


Intego Mac Security X9

Intego performs everything you need to protect your device. Any MacBook Pro running slow could be because there’s no or a poor anti-virus software looking after it. This software features many tools than continuously check your device and scan files, even while you’re using it. Unlike other security software, Intego Security X9 doesn’t delete any malware instantly but instead, moves malicious files into a hideaway destination so your system doesn’t slow down.

Intego is equipped with a junk-removal tool that erases any files that might be reducing your Mac’s performance. This cleaner will show you the results so that you can choose which ones to save or delete. It’ll also categorize your files into tools, caches, and more, to make them easier to find. Plus, it’ll identify if any of these files are harmful using a rated system to help you understand.

Also, the Content Barrier tool is a great feature for parental control. Although this is useful in general, adult websites are a popular destination for cyber attackers, so make sure your device, location, and details aren’t visible. Finally, Intego Security X9 is user-friendly and designed simply so everyone can use it. You can also receive regular notifications if you’d like updates about your MacBook Pro’s performance.


Trend Micro Antivirus

Trend Micro has incredible abilities when it comes to beating malicious files. The initial scan will make a big difference to your MacBook Pro running slow. This Smart Scan investigates any active malware on your device and only takes a couple of minutes. In fact, this is one of the quickest scans for a Mac antivirus software.

If you often use your USB drive, Trend Micro is great for identifying any issues with the device before it’ll accept it. This might reduce your Mac’s speed temporarily, but while you’re using the USB drive, you’ll find that that performance is much quicker than usual.

We mentioned earlier that most Mac users engage most of their time online, so we love that Trend Micro comes with protection against any online threats. If you enter your credentials into e-mail services, gaming websites or (a very popular target!) PayPal, your information can be hacked in seconds. This hacking process can slow down your MacBook instantly, as well as in the near future until the virus is removed.

The Biggest Performance Trick Yet

Hands up if you turn your MacBook to sleep and rarely shut it down. That’s nearly all of us! The most popular reason for doing this is so we can access our device quickly when we next need it.

However, you probably didn’t know that this impacts your RAM. Leaving your laptop on overnight means that it can’t flush out any caches, as restarting your Mac clears these and closes all applications. As a result, you’re left with a quicker device when you wake up.

What is your opinion on the tips above? Have we missed any critical pointers that can improve our devices? Share your thoughts in the comments.

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  3. Ashley Silvey Reply

    Step 5 and 6 seemed to do the trick! Thanks for such clear directions!

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  7. Jonathan Eiten Reply

    Thank you, thank you, THANK YOU, the following worked for me: “Step 5: Reset the System Management Controller”

    My MBP8,2 (late 2011) slowed down after installing “High Sierra Supplemental Update” of Oct. 5, 2017 and installing a new battery on the same day. Not sure which of these caused the problem but it was extremely inconvenient to have a slow Mac during a tech screen (interviewing for JavaScript coding position). Embarrassing!

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  10. Derek Reply

    I keep trying to do an smc reset but mr MacBook Pro keeps starting any suggestions.

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  16. Tracy Reply

    Thank you. This was a big help! My MacBook Pro is running so much better after following your tips!

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  19. Rondo Reply

    Wow what a difference! Thanks man!

  20. Donald Reply

    It takes a half hour for my Mac book pro to start up. When I type the password in that takes about another 5 minutes. Everytime I click on something the rainbow circle shows up and takes about 2-3 minutes to go away. I have 371gb free, no clutter and hardly any apps. I have no idea what’s wrong with it.

    • Chur Reply

      If you fixed this let me know please. Mine does the same thing!

      • Marsh Reply

        Do thevtesets suggested in this blog also you can download disk inventory x that will help you find anything hidden on ur computer also go get ccleaner it’s amazing for clearing stuff up too

  21. Ty so much. I’m slow learning on mbp and have had weird lightning looking strikes in my computer and sudden slowness opening any app. I have done the restart several times and it works for a while then gets slow. I ck the utility and also have very little on desktop. I have a 2009 with no accessible battery or back door. I tried mackeeper but it keeps asking me to pay. Is this something I as do to fix oroblem

    • Hi Barbara. Do you mean your Mac slowed down after lightning strikes in your area? Did you notice something at the time of lightning. Anyways, first things first, uninstall MacKeeper. From what we read on the internet, there’s just too much negative written about that software.

  22. Lisa H. Reply

    Your original instructions for resetting the SMC wouldn’t work for me, on an early 2008 MacBook Pro. The machine kept powering on. I found the solution for me on Apple’s support site:

    “Resetting the SMC on Mac portables with a battery you can remove
    Note: Learn about removing the battery on MacBook and MacBook Pro.

    Shut down the computer.
    Disconnect the MagSafe power adapter from the computer, if it’s connected.
    Remove the battery.
    Press and hold the power button for 5 seconds.
    Release the power button.
    Reconnect the battery and MagSafe power adapter.
    Press the power button to turn on the computer.”

    Hope that helps someone else.

    • Thank you Lisa for that share. I am sure some of our readers with older MacBooks will find your instructions really useful! Once again, thanks a lot!

  23. Isaac Canales Reply

    Well i read the info about the RAM and through checking in activity monitor, i see it does reach high usage percentages whenever i try to use a program. However, i don’t feel like i need to upgrade on the cards due to one simple thing that just leaves me absolutely puzzled… why is this happening now and not before. As i said before, this happened very very recently. I’ve never had problems with RAM or CPU usage in general. it all started happening about 5 days ago when the processor appeared to stop speeding up when using a program. It feels like the hard disk is frozen in a sleep state since it doesn’t even heat up faster while the fan is silent. I don’t know why this is happening but i hope i can figure out soon.

  24. Isaac Canales Reply

    I seem to be having a problem with my Mac Pro as well. Very recently, i’ve tried playing games that i normally do (specifically League of Legends) and i had extreme fps issues that were averaging about 15 from my usual 60 to 70. I also noticed that my processor didn’t seem to be working faster or speeding up like it normally does whenever i do an intensive action. the fan would normally speed up and i would hear it but now it sounds like the mac is at critical battery or idle all the time. I run programs like GarageBand and its extremely slow, yet the processor and the fan seem to be snoozing. My battery is fully charged and i have the “Put hard disks to sleep when possible” option unchecked in Energy Saver options but the processor still isn’t even trying. I also tried an SMC reset and nothing happened however i think i may have done it incorrectly as i don’t remember if i held it for at least 10 seconds. I really hope this isn’t serious and i don’t want to have to take it to Best Buy since my warranty is expired. Please Help!

    • Hi Isaac. Sorry to hear about your many problems. Can you try reading through this very detailed resource on addressing video RAM problems on a Mac? I have a feeling it might help you at least figure out your problem, if not help you fix it for good.

  25. Felix Reply

    I own an early 2011 MacBook Pro which had the common graphics issue. I found a service provider which replaced the AMD Radeon and I think the VRAM too. Either this or another company did a mistake unmounting or mounting the logic board (broken capacitor), which has been repaired as well. Since the repair job the battery doesn’t work and what bothers me more the CPU performance seems to have dropped. I have therefor compared the BOINC benchmarks from now and one month ago and the newer ones are at about 28 % of the older ones. Is it possible that the CPU doesn’t get enough Volts probably due to a higher resistance? iStat shows a CPU VCore voltage of 0,66-0,75 V.

    • Hi Felix

      Unfortunately, your question is a bit too technical for me. I would rather accept that I don’t know the answer than try fluffing one. Maybe some of the other readers here can chip in with their opinion.

  26. janine satioquia Reply

    YAY! resetting the system management controller worked for me THANKS HEAPS!!!!!

  27. bOsO Reply

    I upgraded my macbook pro to LINUX No more problems fly

  28. Reza Reply

    Thanks for this intresting post. Unfortunately, none of these tricks solved my problem. Last year I upgraded to Mavericks and everything was going well until I instaled an antivirus and upgraded Java. Since then, my macbook is very very slow. However, I am not sure if this was a true reason or just a coincidence. I even wiped my laptop and installed Yosemite and tried all suggested recommendations, but nothing changed. It is so slow that my pointer does not move smoothly, stops and jumps! FYI, it is a 2011, 2GHz Core i7, 4GB, 500 GB SATA (487 GB free). Its battey is dead and it should be plugged always. I would truly appreciate if there is anything else to recommend because my laptop is useless in this condition, and I need it, and miss it!!

    • Hi Reza

      It sounds like your antivirus or your firewall might be the culprit. Is your antivirus still running on your MacBook? Have you installed MacKeeper? Give us the name of your antivirus and tell us if you have uninstalled it. I would recommend that you do a thorough cleanup of your application list, getting rid of all programs that you don’t need. Then, re install OS X on your existing OS X partition and then reboot. I really hope it fixes your problem. Maybe others can also pitch in with their help for Reza.

      If all else fails, try taking it to the Genius bar. Even if it is out of warranty, I suppose you could pay them to fix your MacBook, as a last resort.

      P.S. Can you try running SMARTReporter, a disk monitoring utility. Search for it in Google and download it. If it finds a problem with your hard disk, maybe you might have to replace your HDD.

  29. Twitch Reply

    WOW! I just reset my SMC…haven’t never known about it before…and my mac is running like a dream now! I can’t believe it!
    What use to take me 2 or 3 minutes to restart my computer, took less then 30 seconds…and once it did start back up, things loaded damn near instantly!
    I’m in a bit of shock right now! haha 😛 It’s like I’ve been given a brand new computer!
    Thank you SO much for this! I did a lot of the things you suggested in this list and now my macbook is running VERY fast!

  30. Alex Reply

    Hi Michelle,
    I was just wondering is there a reason why you haven’t mentioned Defragmenting the hard drive as one of your suggestions?
    I have heard that with a mac it is not so necessary to do it as often as a PC, but I have had my MBP for 4 years now, and was wondering if I should try that as well, or would the Clean-My-Mac be good enough?

    • Michelle Smith Reply

      Hi Alex

      OS X is designed to automatically defrag the Mac’s hard disk on a continual basis. Though the defrag option is available in Disk Utility, it isn’t something that needs to be run regularly, like how you would need to defrag a Windows hard disk. Hope that helps.

  31. ali Reply

    Hello would this also work on an iMac?

    • Michelle Smith Reply

      Yes, the suggested resets will also work on your iMac. Use our search box to find a iMac related post. We have one just for that!

  32. Christine Reply

    Hi Michelle

    Does the SMC and PRAM work on older macbooks?
    Mine is not a pro, but a white one app. 2008

    Thanks, Christine

    • Michelle Smith Reply

      Hi Christine

      I am not entirely sure about this but this is what you can do. Try the SMC instructions we have given you in the above post. If you don’t notice any kind of reset happening, try the following instructions instead. They are more specifically given out for older MacBooks.

      1. Shut down your MacBook
      2. Turn it over and open the metallic door on the underside
      3. Identify a physical SMC reset switch that will be labelled as SMC_RST (You will most probably find it under the notification LEDs. We recommend that you use a non-metallic point like a pencil nib to push this reset button)
      4. Install the door back on
      5. Power up your MacBook

      Hope this was of some help to you. Please do post back if it helped!

  33. Dave Thwaites Reply

    Yes!!! You’ve just totally fixed my mac with the SMC update gem. Legend! My mac was one more ‘beachball hang’ away from testing it’s beachball qualities by throwing it out the window, but you’ve saved its bacon, and my wallet!! Thank you!

  34. Gary Bennett Reply

    Hi Michelle. You are my latest and greatest Mac hero. Since the advent of Mavericks, my Mac has been running slower than syrup running uphill. More despite being a Mac user for nearly 10yrs – and thinking myself knowledgable all things Mac – I have been unable to get it back to my Macs of old. Enter Michelle, and voila!!! After finding your page by chance and then following every single one of your points, I confirm that everything is running fantastic – and at great speed. Only TWO issues: (1) from start-up, the Apps are still taking a whilst to kick in (no prob really, as once they have started, I quit the app and start it up again at lightening speed)….(2) I dont know if related, but all my probs (I think) were stemming from the mail-Gmail-Mavericks…I have now (at least for now) ditched mail and running with Mailplane 3…..A combination of the above now has my Mac back to near ‘new’ performance, and I would like to thank you for your help…I’ll be sure to read more about your Mac advise….Cheers

  35. Andrew Watts Reply

    Usually we think that deleting duplicate, junk and caches files will speedup the Mac but don’t wipe disk space by doing this. Use Activity Monitor, hard drive sleep mode and hardware issues for slow speed problems. Apart from checking these, if speed can not accelerate then there are many efficient tool like Stellar Drive Defrag, iDefrag etc. for defragmenting Mac drive.

  36. kiran Reply

    Hi Michelle,
    Thank you for the information. Tried the SMC reset; but the laptop would start within 10 seconds; and it takes a very long time to start and gets stuck with the opening screen. Can you tell me how to fix this problem?
    Thank you,

    • Michelle Smith Reply

      Hi Kiran. Sorry to hear about your problem. It sounds like your OS X may be corrupted. Can you try booting your MacBook in safe mode? Power off your Mac and then power it on again. After you hear the startup beep, press and hold down shift. When you see a grey Apple logo, release the shift key and allow your Mac to boot up in safe mode.

      Once inside, run Disk Utility and run repair disk permissions on your OS X partition. Hopefully, after it is done, you shouldn’t have any problems with your Mac.

  37. Lance Frazer Reply

    Hi Michelle,

    Thanks for the post. I went through the steps listed, and everything is A-OK when my computer is NOT plugged in. Weirdly enough, when I plug it in, my MacBook is rendered useless. The touchpad becomes pretty much unresponsive as my mouse is jumping all over the screen. Really not sure what to do here. Any ideas?


    • Michelle Smith Reply

      Hi Lance. That is a very unusual problem indeed! From what I know, your type of problem only occurs when your charger is faulty. If you have more than one MacBook or if you can borrow your friend’s MacBook charger for a day, swap it with your old charger and see if the problem persists.

      I have a feeling that your charger is the problem and can be pretty easily fixed!

  38. Esther Bezalel Reply

    Hi Michelle, I will just do the SMC reset. But my idle was between 80-90%, how can I fix that?

    • Michelle Smith Reply

      Hi Esther

      If your idle is high, it means your processor has a lot of bandwidth available. That shouldn’t be a problem. Is your MBP still slow after the SMC reset?

      What problems are you exactly facing?

  39. Luis Reply

    Thank you for your quick answer, Michelle. I’ve already ran all kind of tests that Apple offers. Minimal errors were found and fixed, but nothing important.

    Guess I don’t have another option but to buy a new mac. Although, I’ve already been told that the new MBP retina also have the overheating problem. Can you confirm that? I’m a journalist, so I use my mac for editing, etc. I use ‘heavy’ programs, such as final cut, photoshops, etc. Overheating is not welcome 🙂

    Thanks a lot again!

    • Michelle Smith Reply

      Hi Luis. Yes, we are seeing many people reporting overheating problems on their retina display MacBook Pros over the past few months. It looks like the high power resolution combined with the heavy workload you require from your MBP is just a bit too much for it to handle. Before you buy a new Mac, we would however recommend that you try a high quality laptop cooling fan to see if it can be good enough to keep temperatures down, even when you have Final Cut and other types of graphic editing software running at full tilt.

  40. Luis Reply

    Hi Michelle, this is my first time here! Thanks for all of your tips.

    I’m pretty sure I have my macbook pro cpu’s damaged, due to overheating. I have already cleaned up my fans and solved the overheating problem, but the problems remain. Upgraded my OS, run apple hardware test (nothing came up) and everything is still the same. I can not even watch a movie here. a lot of bumps, the image stops while sound keeps on going, non-responding programs, etc.

    My question is: is there anyway to repair my cpu or do i need to buy a new one? If I buy a new one (don’t want to :/), what can I do with the current one? It’s a Macbook Pro 15″ early 2011, 2.2GHz Intel Core i7, 4 GB memory, etc. This mac was supposed to last for a long time and i’ll be really sad if it’s just garbage.

    Thanks in advance!

    • Michelle Smith Reply

      Hi Luis. Thank you for your comment. Unfortunately, there is no way to safely replace or upgrade just your MacBook Pro’s CPU or motherboard as these are soldered on during manufacturing. If someone were really technically savvy, they could probably replace it with a newer CPU for you although I doubt if they will give you any sort of guarantee that the fix will work. If anything, it will be a trial and error fix. Are you sure that your hard disk is OK? Can you run Verify Disk by running disk utility. To run it, please use Applications -> Utilities -> Disk Utility -> Select Your Hard Disk -> First Aid (On the left hand side menu) -> Verify Disk.

      If that program finds errors, it will also help you repair those errors. Please give it a shot and see if it fixes your MacBook Pro.

      P.S. – You will see that the repair disk option will not be available if your disk has OS X installed and running on it. However, you can still repair your OS X disk by doing the following.

      1. Restart your MacBook Pro
      2. As soon as your MacBook Pro begins to restart, hold down Command + R at the same time (In some model MacBook Pros, you might have to hold down the Option key as well)
      3. Choose “Recovery HD” from the menu that will pop up
      4. Choose the OS X hard disk that disk utility found errors in
      5. Click on Repair Disk
      6. Finish the repair and continue to boot your MacBook Pro
      7. Hope for the best!

  41. Stephanie Francisco Reply

    Hi, I tried to do everything but it’s still running slow. Also, my idle statistic are always 80-90%. I’m getting frustrated because I really don’t know what to do anymore. My laptop is only 1 year and a couple months old.

    • Michelle Smith Reply

      Hi Stephanie. Sorry to hear that. Can you tell us what specifically your MacBook Pro is doing wrong? Booting up slowly, not being able to multitask or maybe just hanging up all the time?

      If you are more specific, we can maybe try to help you with some fixes. Can you also go to our site’s search bar and type in Apple Diagnostics and then go to the post that mentions it. There, you will find instructions on how to do a hardware test. I suspect that some hardware component might have failed in your MBP

      • Stephanie Francisco Reply

        It just keeps on hanging up. Like even if I type something, I need to wait for a minute before it appears.

        • Michelle Smith Reply

          Wow, that is really bad. I would try the SMC and PRAM resets again. Are you sure they worked the first time around? If the resets don’t fix it, I think you might need to take it to a service station. It could be that your hard drive is corrupted or damaged as well.

  42. Iqbal Kabir Reply

    Thanks for this useful article. SMC reset worked like a magic to speed-up my MacBook Pro.

  43. Lizzy Reply

    Thank you for the information. I reset the system management controller. It seems to be helping but I haven’t had enough time to know for sure. I did declutter my desktop. I already knew that was a bad thing to do and it wasn’t that bad, but it’s much better. I still think my MBP is running too slowly though, but better than it was. Frustrating!

    • Michelle Smith Reply

      Hi Lizzy

      Did you try the PRAM reset as well? Also, how much free disk space do you have on your MacBook pro? A full hard disk can also really slow down your MacBook’s performance, even if it is a SSD!

  44. vern Reply

    Thank for the info , kit has helped me. Vern

  45. dave Reply

    I did all you said but using the power button because mine broke.its still so slow (using my iphone). it just drastically reduced itself out of nowhere yesterday. I bought my computer new and didn’t come w a disc. updated to mavericks.all my data is backed up. but I use my computer 10 hours a day and sending it off to be fixed would affect me greatly.anything else I can do? can I reset it wo a disc? thanks

    • Michelle Smith Reply

      Hi Dave. It sounds like your Mac badly needs a SMC reset for which the power button will have to work. Is there someone savvy enough to get the power button working. If that could happen, you could try the SMC reset and I have a feeling it will help.

      Also, how much hard disk space do you have? If it isn’t a lot, you must try clearing it up as added free disk space can make a big difference to performance levels.

  46. Rob Reply

    Thank you… your material is succinct and very fast/easy to perform… my MacBook Pro is running much better now 🙂

  47. TheFultons Reply

    smc reset is an awesome way to boot performance on your MacBook Pro. I usually end up using it at least once a month and it always seems to do the trick….have to try clean my mac yet..

  48. Renee Reply

    Thanks! Was helpful.

  49. a.yk Reply

    the shift control option power does work! thanks

  50. DC Reply

    Early indications are that reseting the SMC has made a noticable difference.
    Thank you for this tip.

    • Michelle Smith Reply

      Great! Glad to have helped in some small way 🙂

  51. GeneliaIn Reply

    Wow, the cleanup software really helped. Turns out my MacBook’s hard drive had just 248 MG of hard disk space left. The software freed up 17 GB of junk. Incredible. Made all the difference to both booting and browsing speeds. I use my MacBook to just browse!

    No wonder this post got shared on Prismatic 🙂 Kudos – Keep it coming!

  52. Maciek Reply

    Resetting the SMC on Mac portables with a battery you can remove

    I’m not sure if you’re right. That’s the official instruction:
    Note: Learn about removing the battery on MacBook and MacBook Pro.
    Shut down the computer.
    Disconnect the MagSafe power adapter from the computer, if it’s connected.
    Remove the battery.
    Press and hold the power button for 5 seconds.
    Release the power button.
    Reconnect the battery and MagSafe power adapter.
    Press the power button to turn on the computer.

  53. Stefenie84 Reply

    I had no idea that there was something called a system management controller in my MacBook Pro! And yes, resetting it made a huge difference!

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