On Automatic repair screen you will see two option "Shutdown" & "Advanced options"


click on "Advanced options"


Next screen click on the option "Troubleshoot"


Again you will get two option "Reset this PC" & "Advanced options" 


Click on "Advanced options" and you will get 6 options.


Then click on "Command Prompt"


A black screen will appear as "X:\windows\system32>


Now type below commands "d:"


X:\windows\system32>d:


d:\>dir


The output of this command will list all the directories and there will be a folder name as "Windows" 


If you found the folder "windows" type the command as below else check same on another drive.


d:\>cd d:\Windows\System32\config


Create a directory inside config folder


d:\>Windows\System32\config>md backup


d:\>Windows\System32\config>copy *.* backup


d:\>Windows\System32\config>cd RegBack


d:\>Windows\System32\config\RegBack>copy *.* ..


press a


d:\>Windows\System32\config\RegBack>exit


Now click on the option "Turn off your PC" and start system