Adding HP Printer gets error 0x0000007e

If a Windows 7 machine cannot add a printer because of a 0x0000007e error: Delete BIDI registry key (on server) from HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Printers\\CopyFiles\BIDI Sometimes the print spooler needs to be restarted.

How to change license from server 2012 r2 eval with MAK key

I found out you can do this pretty simply. I wanted to change my 2012 R2 Standard Eval ISO to use my 2012 R2 Standard MAK key. I ran this in an elevated command prompt: DISM /online /Set-Edition:ServerStandard /ProductKey:xxxxx-xxxxx-xxxxx-xxxxx-xxxxx /AcceptEula replacing the x’s with your key, hit enter and it should work with a requested ...