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Windows installation cannot proceed

I ran into error while reinstalling Microsoft Windows 10 Pro on Lenovo T420 laptop.

 The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed...

Workaround

Press SHIFT + F10 to open Command line windows.
Run regedit.exe to open Registry Editor
Go to Computer\HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\ChildCompletion
Look for Setup.exe on the right pane



Doubleclick on Setup.exe on the right pane, change Value data from 1 to 3, press OK.



Press OK again to close Install Windows dialog.


Reboot. The installation will continue.
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