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Windows 7: Accidentally lost administrative privilege

08 Feb 2015   #1

Windows 7 Ultimate x64
Accidentally lost administrative privilege

Hello guys,

Before enabling guest account, i tried to secure the system drive so that no one can access except administrator. Most probably i selected authenticated users in security tab. Think that's why i can't access. Now i can't create any other user, no access to device manager.

Help me out!

Attached Thumbnails
Accidentally lost administrative privilege-untitled.png   Accidentally lost administrative privilege-untitled-2.png  
My System SpecsSystem Spec
08 Feb 2015   #2

Windows 10 Pro X64

See here: User Account Password - Change from WinRE

Once you have enabled the hidden Administrator account from a Win 7 install disc, then you can login as Administrator to make any necessary changes to other accounts.

I've done this many times, works great.
My System SpecsSystem Spec

 Accidentally lost administrative privilege

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