Windows 10: Unknown SID

I have a SID no. listed as a user in my homeusers group on windows10 pro.

It starts: icon w/ ? mark S-1-11-96-.....

I cannot a reference to determine who or what this is. Please help.




:)

 

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Mystery SID. Help plz.

Open Command Prompt or PowerShell, enter command wmic useraccount get name,sid. This gives you a detailed list showing which SID belongs to which user account.

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The mysterious unknown account: Threat or harmless bug?

Well, this one may be different. Notice that this particular SID is not a user account SID, it's what is called an "application SID" in order to specify permissions for application containers. Windows 10 is using these all over the place, which can complicate things considerably. The fact that this is listed as an "Account Unknown" does not necessarily mean that it's not needed. As a matter of fact, in the case of the SID above I have seen reports of people having deleted the SID from permissions, only to end up with a broken system (Edge crashing on launch, etc., etc.) Fixing such a system is possible, but not straightforward, and will require some PowerShell wizardry...