I have revied all the related Topics but none have explained anything like what i am having a problem with. About 4 days ago I was watching a show on ITunes, I recieved an error, Itunes shut down and then I got this blue screen (do not remember what was on it). My AVG software had just expired, so i purchases another year (downloaded). After download of AVG everything seemed to be fine, my computer restarted fine, logon was fine and it scanned my computer with no problems. So I turned my computer off at the end of the night, next morning turned on the the computer and a DOS program ran for about 15 minutes. It included words like corrupt, restoring, fixing. and then my computer started normally. When I tried to logon with my password at the logon screen I got the message: The Group Policy Client Service Failed the logon. Access is denied. My computer brings everything up and will let me logon fine in Safe Mode and create a guest account which i can also logon with no problems. I purchased a recovery disc and that did not help either. I also tried restoring to a point about 10 days ago. None of these things works, which tells me that obviously AVG has deleted a logon file or driver or AVG is the problem but I cannot uninstall in safe mode. Any help would be greatly appreciated. Thanks. Also I have Windows 7 as my OS. Shawn

Hi, This error means your profile resgistry database cannot be loaded at that time. This maybe caused by the corrupted user profile or corrupted security settings. Please log on with the built-in administrator account, then backup all your useful data under user profile path=>Delete the existing profile and recreate one. With it could help you out of this issue.Juke Chou TechNet Community Support

Hi, This error means your profile resgistry database cannot be loaded at that time. This maybe caused by the corrupted user profile or corrupted security settings. Please log on with the built-in administrator account, then backup all your useful data under user profile path=>Delete the existing profile and recreate one. With it could help you out of this issue.Juke Chou TechNet Community Support