Fix It 50202 works in Windows XP, Vista and 7 only.
Microsoft also has the very powerful Fix It Tool 50202 that completely reinstalls Windows Update components. This one is especially helpful in cases where Windows Update is not able to check for updates (for example, error 800700C1) or installs the same updates all over again (several cases with infinite loops of .NET Framework updates).
Because Microsoft just loves to move the tool randomly around (and its site search is not helpful either), I now provide direct download link to Fix It Tool 50202.
Please save the file, do not run it automatically!
After downloading is complete, run the program (named MicrosoftFixit50202.msi).
Click I Agree in the License Terms page and then click Next.
As you can see, the Run aggressive options (not recommended) check box on Additional options screen is unchecked. I strongly suggest to execute the repairs without enabling aggressive options for the first time - this will retain all Windows Update and Microsoft Update settings.
In Windows Vista and 7, User Account Control will appear. Click Continue or Yes.
The tool will then create a System Restore point and run the fixes. Some files might be downloaded during the process.
After the program has done its job, click Close.
A prompt to restart your computer appears. Save open documents and close all open programs. Then click Yes.
Verify that Automatic Updates, Windows Update or Microsoft Update works
fed up with Windows antics...??
LINUX IS THE ANSWER
I USE LINUX MINT 18.3 EXCLUSIVELY.
Failure is not an option. It comes bundled with your Microsoft product.
Success is not Final, Failure is not Fatal,
It is the Courage to Continue that Counts.
W.C. 4th June 1940