Forum Discussion
Sysprep 16278
Can't Sysprep Release Error [0x0f0070] SYSPRP RunExternalDlls:An error occurred while running registry sysprep DLLs, halting sysprep execution. dwRet = 0x41d
Try this: open powershell as an administrator, type Disable-Ual, then reboot the server. Then try sysprep once more.