I tried upgrade my Windows 7 and now nothing works. I just want to start over.
Backup your OSX before undoing BootCamp. BootCamp Assistant will alter the boot sector of the disk and *can* corrupt it.
Second ... use BootCamp Assistant as it knows how to UNDO the dual-boot alterations to the boot sector.
Thanks. Now I am waiting for the referendum to delete 7000 of my points.
No! Instead, you'll be getting an email with some links in it....
Retrieving data ...