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Q. I am asked to enter the ATPR keychain password. What is this?

Keychain is a feature of MacOS that is used to securely remember passwords for websites, or your own password that MacOS will normally prompt you for when installing software such as VirtualDJ.

You will need to enter the password that you set when enabling this utility, or change it via the Keychain Access application.

You can remove it by deleting the file:


If you cannot find or access the Library folder, please see: MAC. Reveal hidden Library folder