Conflict with the HP Security Manager with an HP ProBook 4530 / Win 7. (there is a thread with another user, wjmkoopman, experienced the same issue)
After upgrading from Avast 8.0.1483 to .1489, the laptop displays the login error, "User does not exist" when attempting to login.
Safe mode allowed successful login. Unistalled Avast 8.0.1489. Rebooted and successfully logged into Normal Mode / reinstalled from the Avast website. Rebooted into Normal Mode and the problem immediately returned.
Tried playing around with the HP Security Manger without success. I did not uninstall it. Avast .1489 is clearly the issue here.
TEMPORARY SOLUTION: Did a Windows Restore back to a day or so before the Avast Upgrade, which restored Avast to v8.0.1483. Will now wait until Avast publishes a solution, assuming one comes.
If anyone has insight on a resolution for this issue, I'd love to hear it.
-- tl