I was trying to set up GPO - Software restriction policy, so i created the object on our Domain Controller.
Fast forward the next day, everybody who turned off their systems at night could not login (after inserting password, a blank screen comes up with only the cursor). but those who just hibernated or slept their system didnt experience any problem.
I removed the GPO immediately and asked them to restart, all came back to normal...(except a few people running XP). those on windows 7 and 8 are good to go
Now the thing is...those xp clients exhibit many strange behaviors like - cannot copy and paste - task bar has been hidden - workstation service not starting - under application in the event log, Software restriction policy is responsible for many errors and alerts - etc
i believe the policy is still on those systems, even after trying to clear it.
what can i do to resolve this?