Hyper-V Manager Error

This is the second time I've run into this problem, so I figured I better post about it. Perhaps it will help some other tech folk and remind myself.

This is not necessarily specific to Hyper-V, other MMC snap-in's won't open as well. This issue occurs after an update to .net.

Here is the error message:

MMC could not create the snap-in. The snap-in might not have been installed correctly.
Name: Hyper-V Manager
CLSID: FX:{922180d7-b74e-45f6-8c74-4b560cc100a5} <<--or some such number.

Here is the fix:

1. Remove .net 3.5 from your computer

That was easy.