Windows 10 How to use Regback to fix failure to boot

[questionsformicrosoftproducts]

One of the methods that has worked for failure to boot is Regback.

There is a bug in the method that had worked:

https://www.thewindowsclub.com/regbak-lets-you-backup-and-restore-the-windows-7-registry-easily

https://borncity.com/win/2018/11/05/windows-10-regback-fails-in-v1803-1809/

If the command vssadmin.exe list shadows

is used it will display the shadow copies.

How do you use a shadow copy to recover registry hives?

Please list step by step methods

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