Windows: Repair a Domain Machine Account

Here's a quick way to repair the domain membership for a machine account. 

 It doesn't require two reboots and new machine account churn. 

 To do so, open an elevated command line prompt and do this: 

 Test-ComputerSecureChannel -Verbose

# and only if that returns False:

Test-ComputerSecureChannel -Repair -Credential MFGDUR\<your-admin-account> 

 The repair resets the machine-account password with the domain in seconds, no reboot, no rejoin. 

 Once executed, verify domain membership, by following this page: Validating AD Machine Account