Reset/restore xp or Vista Permissions

To restore your operating system to the original installation default security settings, follow these steps:

• Click Start, click Run, type cmd, and then press ENTER.
• In Windows XP, type the following command, and then press ENTER:
• secedit /configure /cfg %windir%\repair\secsetup.inf /db secsetup.sdb /verbose
• In Windows Vista, type the following command, and then press ENTER:
• secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose
• You receive a "Task is completed" message and a warning message that something could not be done. You can safely ignore this message. For more information about this message, see the %windir%\Security\Logs\Scesrv.log file.