MMC Could Not Create the Snap-In

I recently restored the Windows 7 Professional 64-bit system partition from a saved disc image.   Task Scheduler and Event Viewer do not work, with the error "MMC could not create the snap-in. The snap-in might not have been installed correctly".  In Control Panel>Programs & Features>Turn Windows features on or off, nothing is displayed. SFC showed no errors.  
 Everything else seems to work fine, and the disc image was made at a time with the snap-ins worked. Please advise.
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ddantesAsked:
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JohnBusiness Consultant (Owner)Commented:
One thing in particular is to update .NET Framework. So make sure that is done.

In this Microsoft Article below, there is a FixIt and you might try running that.

https://support.microsoft.com/en-ca/help/826282/snap-in-failed-to-initialize-error-message-when-you-open-microsoft-man
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ddantesAuthor Commented:
Thank you.  That Fix has been "retired".  I tried installing the latest .NET Framework and it failed.  Now I'm installing Windows Updates.
Meanwhile, I have another computer of the same exact model, and same operating system, whose MMCs work.  Are there some files or folders I could simply copy from that machine to the defective one?
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JohnBusiness Consultant (Owner)Commented:
Try running .NET Framework Setup Verifier. This can fix some .NET errors.  Make sure you have all versions of .NET installed.

http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx
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R@f@r P@NC3RVirtualization SpecialistCommented:
Hello,

Sure the .net framework, is corrupt, please install this tool to decide if there are errors and you can repair them.

https://www.microsoft.com/en-us/download/details.aspx?id=30135

Also run a gpedit.msc to validate if you can open the local group policy console, only to discard.

I remain attentive to your comments.

regards..
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ddantesAuthor Commented:
Thanks to both Experts.  I'm trying to restore a saved disc image, from a time before this issue developed.  I'll post again afterwards, but it may take some time...
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R@f@r P@NC3RVirtualization SpecialistCommented:
Hello,
in account, any doubt you can consult.
regards..
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ddantesAuthor Commented:
The issue was resolved by restoring a saved disc image.  I'd like to award Best Solution and Assisted Solution, but it seems they have done away with Assisted Solution award?
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