I am running OS X 10.11.8. I am attempting to change some settings in /Library/Filters/. I am logged in as an administrator (verified in System Preferences > Users & Groups). When I go to Finder > Get Info for /System/Library/, I am able to click the unlock icon, and my password is accepted.

However, when I try to change the permission for "everyone," I get the following error:

The operation can’t be completed because you don’t have the necessary permission.

How can I resolve this?

  • support.apple.com/en-us/HT204899 Commented Aug 8, 2017 at 22:43
  • I've looked at this, but am not sure it applies. From the article "Paths and apps that third-party apps and installers can continue to write to include: ... /Library..." Thus, SIP shouldn't affect the library folder.
    – Adam_G
    Commented Aug 8, 2017 at 23:41
  • Your screenshot isn’t from Library - it is from the System folder. Commented Aug 9, 2017 at 0:29
  • Sorry, I didn't realize there was also a top-level /Library folder. I have updated my question.
    – Adam_G
    Commented Aug 9, 2017 at 0:55
  • Library/Filters/ & System/Library are no proper paths. It's unclear whether /System/Library/Filters/ or /Library/Filters/ is meant.
    – klanomath
    Commented Aug 9, 2017 at 1:35

1 Answer 1


It is no longer possible to change permissions on /System/Library in macOS Monterey or up.

If you're on an older version of macOS, you'll need to disable System Integrity Protection to make changes to permissions in /System.

To disable System Integrity Protection, you can do the following:

  1. Boot into the Recovery HD by restarting whilst holding ⌘R.

  2. Open Terminal (from the Utilities menu).

  3. Run the following command in Terminal:

     csrutil disable
  4. Restart.

Disable OS X El Capitan Rootless and permit write actions to System Integrity Protection locations

  • Isn't this overkill?
    – Pacerier
    Commented May 29, 2018 at 14:27
  • 3
    @Pacerier How so? If one needs to make changes to /System, this is the standard way. It's not generally recommended to make changes to /System, yet this question wants to. The question may be an XY problem, but that is something to discuss regarding the question rather than this answer?
    – grg
    Commented May 29, 2018 at 15:17
  • 1
    Using Monterey this doesn’t work any more. Still denying :(
    – Mercutio
    Commented Jun 15, 2022 at 20:04

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .