Just had this question fired at me for my helpline column. Basically, a guy has aquired a new hard drive (does not say if it is new or secondhand) and has installed W7 onto it. When he boots he is confronted with the screenshot below. I suspect the drive has been setup as a multi-boot device and is still running a non-Windows bootloader. What do you think? Oh, and my advice was to wipe the drive and format it correctly wiping the MBR.