Our office has QB Desktop 2019. Users have been getting the "There is a new Quickbooks software update waiting for you" message, and  "Looks like you don't have the required permission ..." I followed the steps described above short of uninstalling and reinstalling QuickBooks: single user mode, log on as QB admin. Once logged in I got the various dialogues about installing the update, which it appeared to do, but it didn't actually update. I kept getting the message, "There is a new Quickbooks software update waiting for you".

I had to log into the computer as the  computer/domain administrator user, then it automatically installed the update when I launched QB 2019.

This is a problem. A user with QB admin privilege should be able to update. Alternatives are either for an actual Admin to log into the computer to do the update, or to give the user the admin credentials and log out and back in as the computer admin user. Neither alternative is desirable. In fact, QB doesn't even bring up the dialog asking for the admin credentials in the current users session, as most other software does.

Is there anything I can do about this?