How to fix the "Account Unknown" "S-1-5-21-25 ......................."

maki · Aug 3, 2016

How to fix the "Account Unknown" "S-1-5-21-25 ......................."

How to fix the "Account Unknown" "S-1-5-21-25 ......................."

Michael_Larsen · Aug 4, 2016

Re: How to fix the "Account Unknown" "S-1-5-21-25 ......................."

(The long number is a security identifier number). I believe you can remove it via the security tab in the properties (Right click on the file and select properties, click security). If is sharing the file/folder with the "unknown contact," I think you can also remove that account in the sharing tab. I don't have my Windows 7 machine up and running so I shooting in the dark here but hope that helps. :wave:

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How to fix the "Account Unknown" "S-1-5-21-25 ......................."

maki

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Michael_Larsen

IT Specialist, Contributor