The most reliable way to run the tool is as an administrator: Navigate to C:\Windows\System32\Sysprep Right-click sysprep.exe and select Run as Administrator System Cleanup Action Enter System Out-of-Box Experience (OOBE) Generalize box (this is critical for unique SIDs). Shutdown Options 3. "The Best Fix" for Common Errors
Modern Windows apps often block Sysprep if they were updated for only one user. How To Sysprep Windows 11 The EASY Way! easy sysprep v3 final best fix