My lappie does not have DELL Datasafe local. So no possibility of making recovery disks.
1.The only possible thing as per the manual is to restore it to factory image, by repeatedly pressing F8 when DELL logo appears and then select DELL Factory Image Restore and yes I had repeatedly pressed F8 but it does not take cognizance of it and gets on to the next screen.
2. As I said there is only the first screen with Ubuntu Light icon and Windows 7 icon. By default Windows 7 icon is highlighted and after 5 seconds Windows 7 boots. (There is no Windows Boot Manager Screen as we normally see)
If at the time Windows 7 boots I press F8 repeatedly it does take me to the Advanced Boot Options, but the screen that comes is the one we normally get "Restore from a system Image"( an image taken by me) and not "DELL Factory Image Restore" which should be the item to appear in-lieu, to restore it from the recovery partition.