MMC could not creat snap-in

When I try to access the event wiewer or the task scheduler i get the MMC could not creat snap-in error

I have tried so far

sfc /scannow

Installed the enable MMC reg fix

uninstalled all .NET framework programs

Ran the a clean all .NET framework program

Reinstalled .NET framework 3.5

Still did not solve the problem

Another thig is I have re-installed windows 7 on a few occasions & still have the same Fault So I think my copy of windows is faulty.I bought it on the Prelaunch from a legiiamate company so I do not think it is pirated probably a manufaturing error. But I dont Know what else to do.I would be open to any new ideas