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One of the common difficulties includes a problem where the app fails to respond when launched.

Likewise, the app may seem frozen or take a long time to load and open.

For a lot of macOS users, it is an essential app as it stores your usernames and passwords.

Furthermore, after trying each step, try to open Keychain Access again to see if youve fixed your issue.

You can open it by going to the Utilities folder of your Applications folder.

Unable To Use This Keychain Access For 10.9 Mac Has MacOS

If your Mac has macOS High Sierra or earlier: Open the App Store on your Mac and click Updates.

When you see the login screen, release the key.

Does it work in Safe Mode Now restart your Mac normally, do not press the Shift key.

Find the file named the file com.apple.keychainaccess.plist.

Do not worry, this only stores preferences it does not contain your passwords.

Restart your Mac.

Test your problem.

Can you open Keychain Access now If not, you may want to put back the preference file you moved to the Desktop.

If you are not sure, which is normal, here is how you can check.

Click System Report.

You can also launch it from the Utilities folder).

In the left sidebar, select Hardware Click Controller or iBridge.

If your computer has the T2 chip, it will say Model Name Apple T2 chip.

If your computer does not have it, it will say this computer does not contain any Controller device.

Keep holding the keys for 7 seconds (ignore it if your Mac turns on).

Now, in addition to the three keys, press and hold the power button too.

Press and hold the Control-Option-Shift-Power buttons for seven seconds.

Wait 5 seconds. Turn on your Mac by pressing the power button.

Keep holding ht eShift-Control-Option-Power keys for 10 seconds.

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Unable To Use This Keychain Access For 10.9 Mac Os X