How to speed up your Mac by verifying and repairing disk permissions

How to speed up your Mac by verifying and repairing disk permissions

If you've owned your Mac for quite a while, you may notice a slowdown in performance over time. A while back we gave you lots of ways to breathe new life into a dying Mac Pro. These tips may also apply to some other Mac models as well but if you're just looking for quick fixes when it comes to performance without altering hardware, verifying and repairing disk permissions can sometimes help.

Here's how to do it.

  1. Launch the Disk Utility application on your Mac. You can do this by either going into Mac HD > Applications > Utilities > Disk Utility or by simply using Spotlight to search for it. The latter is probably quicker and more efficient.
  2. In the left hand column of Disk Utility, click on your hard drive.
  3. Now in the right hand pane, click on Verify Disk Permissions.
  4. Let Disk Utility do its thing and after a few minutes you'll see some permissions that may have had issues.
  5. Now click on Repair Disk Permissions directly underneath the verify option.
  6. Again, Disk Utility will start to repair the permissions just like it did for verify. Once it's done you can go ahead and close out of Disk Utility.

While this won't solve serious problems with a Mac, I have found it to speed up my past Macs when I was having issues with launching applications or just general overall slowness. If you're seeing performance issues, verifying and repairing permissions is definitely worth a try!

Allyson Kazmucha

Help and how to editor for iMore. I can take apart an iPhone in less than 6 minutes. I also like coffee and Harry Potter more than anyone really should.

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There are 10 comments. Add yours.

smlombardi says:

Can't you just save a step by starting with "repair", as it both verifies and repairs AFAIK?

Allyson Kazmucha says:

I've always been opposed to doing this simply because in my experience sometimes it can miss things. At least that's what I've been told...

phoon61 says:

Thanks Allyson, Great tip

dfb8085 says:

I went ahead and ran the disk utility. I guess time will tell if it helped any. Thanks Allyson for the tip.

StuartBell says:

Excellent tips to fix the problem of a slow Mac but disk utility can't resolve all the problems. There we need to go for some professional Mac drive cleaners like Stellar speed up Mac and CleanmyMac

Myles911 says:

I use this usually once a month and I find that it does help if things are running kind of slow.

Rashmi Chauhan says:

Hii Allyson, I find your tip useful for speeding up Mac. But as you also mentioned it works only upto certain level, not on very sluggish Mac that frezzes while launching apps. So, this won't resolved by this tip only, one must try third party Clean up Mac application in order to speed up Mac performance.
Visit: http://www.stellarspeedupmac.com/

Amit Yadav3 says:

Hi Allyason,
Amazing post. I love Mac and love to discover software for mac which could be life saver some time.
My newly discovered software for Mac is http://www.stellarphotorecoverysoftware.com/recover-photos-mac-system.php. Get your deleted or lost photos on mac in simple 3 steps Scan, Preview, Recover
Bingo!

willsonrose says:

In order to speed up your Mac by verifying and repairing disk permissions you need to use Mac disk utility but this can work in some case. In major Mac issue you must have to use tool to prevent Mac files and document from lost. So it is better way to fix mac errors also. http://www.restoremacdata.com