Cannot start Windows after installing Norton GoBack

System not Booting to windows. error "System was Unstable"

Resolution :

Remove GoBack master boot record

Restart >> Ctrl+Alt+G keys

A message will appear that gives you the option to force the removal of GoBack from the master boot record. Note that some computers require that you hold down the Ctrl+Alt keys while rapidly tapping the G key.

Press F to force the removal of GoBack from the master boot record.

Restart the computer