Running two OS on my system.
Windows 7 on Drive(partition) C:
and Windows XP on Drive D:
now i wish to remove windows 7 from my system, got rid off the BOOT thing, but the windows files remain. System wont let me format the partition C:
what to do?
You need to edit the boot.ini file (could be hidden) on the D drive to look like this.
Since Windows 7 controlled the boot process it may have renamed the boot.ini file to boot.bak
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="C--XP" /noexecute=optin /fastdetect
Once you have done that use a partition manager like EASEUSPartitionMasterPro to set the D drive active and the other drive to normal (anything but active)
Reboot your computer and enter the BIOS to set your D drive as first to boot after your CD/DVD drive.
Incidentally in the above boot.ini example where you see C--XP ..... that is (or was) the name of my drive ... you should put your own drive name there.
Once you get XP booting on it's own you should be able to format the Windows 7 HD.