I have a HP Pavilion s3301f PC. The operating system was originally had Microsoft Vista but in the past was upgraded to Windows 7 Professional. My problem is this. When I attempt to Start Up the system I am asked to provide a Password. When I enter the Password the following error message appears. "The User Profile Service service failed the logon. User profile cannot be loaded." After a brief period the Password window reappears. Repeated atrtempts fail. What can I do? No recent upgrades have been doine to the system with the exception of automatic upgrades. Thanks for any help you can offer.
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