I have a partition that in previous fiddlings has manged to get a boot sector and a crippled windows. It presents to screen in POST as two version of windows, and I have to be quick with the up/down key to get to the correct version. Ideally then is to remove this bootsector and duff windows from the partition. Using Admin/Comp man/Storage - will not allow me to clear the boot sector or format that drive - it remains greyed out. The Win on line help says this is the way to go - bot it does not. So I tried a boot floppy and Fdisk and tried that way Its still there Any other ideas- before I total the whole lot and start over?
Have you tried booting from your Windows XP CD and removing the rogue partition that way? Alternatively, if you have a copy of Partition Magic v.8 you could delete the partition with that. Worth a thought perhaps?
As well as the above excellent advice, have a look at EasyBCD. It manages multi booting. It enables/ disables? booting partitions within Windows startup manager. Not sure if it will help but worth a look; click here