Windows Users SID storage location
E.G.: S-1-5-21-1009579374-2342361561-4147951735-519700
Method 1
– Open a registry editor
– Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\ProfileList
Method 2
C:\Documents and Settings\<username>\Application Data\Microsoft\Credentials
Method 3
– Open a registry editor
– Go to HKEY_USERS and right click on each ID and select Permissions. If the user appears in the list, you’ve found the ID.
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