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Lost all administrator rights/permissions after Windows 7 upgrade from Vista

Really at wits end...

Ran Windows 7 upgrade for Vista Home Premium - minor compatibility issues, made me uninstall iTunes and Google Toolbar then completed without error
Attempted to manage computer - received an error that the digital signature could not be verified and that a recent change may have affected the file
Attempted to re-install iTunes - received an error that the system administrator had deployed policies preventing installation
Attempted to run programs 'as administrator' - received same error that file could not be verified b/c of a recent change
Followed instructions in this Forum for changing registry settings and updating the Owner value on the drives - problem resurfaced after changing registry settings back to original values
Attempted to restore PC from earlier version - same errors outlined above

Any help would be greatly appreciated - ran the same upgrade on my work laptop without any issues; although it was Windows 7 professional and not home premium.

Answer
Answer

Hi,

   

Welcome to Microsoft Windows 7 Answers Forum!  

 

You may try the steps as below and check if the issue gets fixed,

 

Now you need to refer the below provided link on.

 

"How do I restore security settings to the default settings?"

 

http://support.microsoft.com/kb/313222

 

I f the above provided link doesn’t resolve the issue then you need to follow the below provided step to Fix the corrupted user profile and check for the issue.

http://windows.microsoft.com/en-US/windows7/Fix-a-corrupted-user-profile

Thanks and Regards:

Suresh Kumar- Microsoft Support.

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Question Info

Last updated October 24, 2020 Views 18,395 Applies to: