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