A few days ago I received the message "The User Profile Service' services failed logon" "user profile cannot be loaded". This message appeared after I typed in my login password. I was unable to go any further because the computer at that point was stuck in a loop. I would hit the 'Ok' button and the computer would say "Logging Off" then go right back to the login password prompt. I ended up having to shut down and restart in Safe Mode. At that point I did a System Restore and the computer has worked fine which by the way is a Studio 1747. I received the message again today but tried the password again and it went through. I immediately turned the computer off and on again and it worked fine. Does anyone have any idea what is happening? Thanks.