MMC could not create the snap-in

Столкнулся с такой проблемой на Windows Server 2008 Std
Решение простое:

List of OS Version Queries for WMI Filters

More likely than not, if you’re using Group Policy to push out software installation or registry entries to client machines or servers on the domain, the policy may be different depending on the OS version or architecture.

Examples, Group Policy Objects may need to be filtered by:

• Desktop / Server
• Domain Controller / Non-Domain Controller
• 32-bit / 64-bit

Reset windows 8.1 administrator password

There is, but you need to have the Windows (7|8|8.1) install media available.

1. Start your PC off the (Disk|USB|HDD) that contains the install media