Error message “The Computer Restarted unexpectedly or encountered an unexpected error” after System Startup on Windows 7 Recovery

1)      On the same error screen press SHIFT+F10 and it will open up a black Window. (a command prompt window)

2)       In  the black windows type the word “regedit”(without the inverted commas and hit enter. That will open the registry editor.

In the Registry Editor..

Browse to….

HKLocal machine/SYSTEM/SETUP/STATUS/ChildCompletion, and after highliting childcompletion,on the right hand side check for setup.exe. if the value is 1 change it to 3