How to Disable Gatekeeper in macOS High Sierra (add Special K for Sierra Utility)

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gatekeeper for mac

Gatekeeper, first introduced in OS X Mountain Lion, is a Mac security feature which prevents the user from launching potentially harmful applications. In macOS Sierra, however, Apple made some important changes to Gatekeeper that seemingly limit the choices of power users. But don’t worry, Gatekeeper can still be disabled in Sierra. Here’s how.

To resolute Gatekeeper issues on macOS Sierra and unlock images and programs ( annoying image/application is damaged messages pretending you cannot open things ).

 


Disable Gatekeeper in macOS Sierra

The Gatekeeper settings can be found in System Preferences > Security & Privacy > General. The Gatekeeper options are located beneath “All apps downloaded from:” with the choice of “Anywhere” missing.

Thankfully, the “Anywhere” setting can be restored to Gatekeeper in Sierra with a Terminal command. First, quit System Preferences if it’s open and then open a new Terminal window. Enter the following command, followed by your admin password when prompted:

sudo spctl --master-disable

Now, relaunch System Preferences and head back to the Gatekeeper settings. You’ll now see that “Anywhere” has been restored. Click the padlock in the lower-left corner to enter your password and make changes, then select “Anywhere” from the list of Gatekeeper options. The security feature will no longer bug you about apps from unidentified developers.

Special K for Sierra Utility

This is a utility to use Special [K] patchers on macOS Sierra.
This is in NO WAY associated or endorsed by the Special [K] group.

The Xcode Command Line tools must be installed for patching.
If they are not installed, the utility will quit and you will be offered a chance to install them.

Neither the patcher nor the app to be patched need to be placed in any special folder.
However, the app cannot be on a read-only disk.

There are no error messages if the patching fails. In command line mode, the Special [K] patcher does not provide any feedback. Occasionally, successful patching does produce some output, but that has been suppressed to prevent confusion.

The utility will first ask the user to select the patcher. The utility will verify that it is a fairly recent Special [K] patcher. If it isn’t, the user will be asked to select again.

After the patcher has been selected, the user will select the app to be patched. There is no checking to see whether the correct app was chosen. And as said before, failure to patch will not be identified.

If you need to, please click to download.

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15 Persons Talking On “How to Disable Gatekeeper in macOS High Sierra (add Special K for Sierra Utility)
  1. I have done all of the above, however I still get ‘The installation failed. The installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.’ Any idea?

    Thanks

    1. If Special K Is Not Working Then Simply Do This:
      Run This Command In Terminal
      sudo spctl --master-disable

      And Type Your Password. Done

  2. It has worked up until this latest High Sierra release, once the terminal command is entered I get this

    Red:~ g$ sudo spctl –master-disable
    Password:
    System Policy Basic Usage:
    spctl –assess [–type type] [-v] path … # assessment
    spctl –add [–type type] [–path|–requirement|–anchor|–hash] spec … # add rule(s)
    spctl [–enable|–disable|–remove] [–type type] [–path|–requirement|–anchor|–hash|–rule] spec # change rule(s)
    spctl –status | –master-enable | –master-disable # system master switch

    Kernel Extension User Consent Usage:
    spctl kext-consent ** Modifications only available in Recovery OS **
    status
    Print whether kernel extension user consent is enabled or disabled.
    enable
    Enable requiring user consent for kernel extensions.
    disable
    Disable requiring user consent for kernel extensions.
    add
    Insert a new Team Identifier into the list allowed to load kernel extensions without user consent.
    list
    Print the list of Team Identifiers allowed to load without user consent.
    remove
    Remove a Team Identifier from the list allowed to load kernel extensions without user consent.
    Red:~ g$

  3. i installed the app but it gives me this error: Run-Time Exception Occurred. I did the command you suggested but still not working. Thanks for your help.

  4. Thank you Admin. I believe that if you directed people to press “return” after typing in “sudo spctl —master-disable” then they would have a pop up occur which says “password”. Unless you press “return” nothing happens in High Sierra.

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