When attempting to access the Setup Users list window, you see a QuickBooks Desktop Login window prompting you to enter the admin (owner) password. Once you enter the admin password (or hit OK if you do not have an admin password), you receive the message:
Warning: Invalid password, and you are unable to access the user list.
Intuit recommends more than one solution for this problem. The first solution may solve your problem, or you may need to try all of them to resolve the issue. For best results, perform the solutions in the order shown.
Solution 1: Disable Hosting
If you are on a workstation or stand alone computer, you can turn off Hosting Mode and try to access the Set Up Users list.
If you are on the server (or computer hosting QuickBooks), you can turn off hosting to gain access to the Set Up Users window. Keep in mind you will need to have other users log out while you are in the Set Up users window.
Solution 2: Create and Restore Portable Copy of company file
Solution 3: Test in Safe Mode and contact AVG Support
This issue can be caused by using AVG Anti-Virus/Internet Security
You can confirm if this is the case by rebooting your computer in Safe Mode with Networking. If the issue does not occur, then you will need to work with your IT professional or AVG support.