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I hope I've selected the correct StackExchange for this question. I have searched google and StackExchange but haven't been able to find an answer to my question with the search queries used.

I setup a home server as a little project to learn the basics of the Windows Server environment in October 2015. It has worked well and served the purposes I set it up for since.

However, I made a mistake a couple of weeks ago....

Imagine for a second that someone could be stupid enough (or just had a complete lapse in concentration!) to remove 'Full control' for the Administrators on the primary data HDD.

Data drive permissions

Is there any way to revert this permission change short of reinstalling the OS?

Thanks

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You can boot the system with a live Windows CD/DVD/USB and use "TAKEOWN" and "ICACLS":

TAKEOWN /f "X:\" /r /d y ICACLS "X:\" /reset /T

If you do not have a live Windows, extract the HDD's and connect them another windows machine and reset them from there.

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  • Thank you joeqwerty and Oniceag George. I have done as suggested which has given permission to my user. Hasn't completely resolved the problem but answers the question I raised perfectly :) Dec 23, 2017 at 12:47

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