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Windows 7: Lost access to C: drive and admin features

09 Dec 2010   #21

Windows 7 Enterprise (x64); Windows Server 2008 R2 (x64)

Run in a evalated prompt the following command, to reset all permissions to default.
secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose

My System SpecsSystem Spec
09 Dec 2010   #22

Windows 7 Ult, Windows 8.1 Pro,

Have you tried going into the Security tab of the drive?

You can give everyone full access to the drive by adding "Everyone" where it shows in the picture below. Don't forget to hit "apply" and "ok".

Attached Thumbnails
Lost access to C: drive and admin features-sharing-entire-c-drive-authenticated-users.png  
My System SpecsSystem Spec
31 Jan 2016   #23

Win 10
Any solution yet?

Hey Kyrios,

I have made the same mistake as you did but in Win 10. I got the same behavior as you did in Win 7. Nothing work to reestablish my privileges. Did you find any solution to restore your data? Thanks for any info!
My System SpecsSystem Spec

01 Feb 2016   #24

Windows 10, Windows 8.1 Pro, Windows 7 Professional, OS X El Capitan

Hi Gfdan,

Do you have access to an administrative account and are able to perform administrative actions? If not, you have truly made the same mistake as Kyrios, and it'll be a long recovery mission for you.
My System SpecsSystem Spec

 Lost access to C: drive and admin features

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