Identify the culprit by checking the log at C:\Windows\System32\Sysprep\Panther\setupact.log .
This specific service routinely locks files that Sysprep needs to modify. Press Win + R , type services.msc , and press .
Get-AppxPackage -AllUsers *packagename* | Remove-AppxPackage Get-AppXProvisionedPackage -Online | Where-Object $_.DisplayName -like "*packagename*" | Remove-AppXProvisionedPackage -Online Use code with caution. Copied to clipboard *packagename* with the name found in your log, such as *Microsoft.BingWeather* 3. Registry Fix for "Fatal Error"
Open Command Prompt as an Administrator and reset the licensing state: slmgr /rearm Use code with caution. Analyzing Sysprep Log Files for Hidden Errors
Modern Windows apps (AppX packages) installed or updated for a specific user profile break Sysprep's generalization process.
Disconnect the machine from the internet completely before running the tool.
Use Sysprep to remove drivers, but avoid using third-party driver injection tools before the generalization process, as this can confuse the system. Conclusion