Original drive won't load desktop - blue screen

I'm running Windows 7 Professional.  I used Norton Ghost 14 to make a disk image backup (disk copy) of my OS hard drive.  The destination drive was a larger (1 TB) external drive.  This appears to be successful, because I am able to boot the copied drive and have all functionality.  However, when I try to boot with the original drive the desktop will no longer load.  I first get a message "Desktop Loading..."  Then, after a few minutes it goes to a blank blue screen. 

 

Does anyone have a fix for this problem?