right when i was on vista i created a partition to back everything up to ready for the the format and install of XP to replace it. Now, i must have cocked that up as when i try and delete my partition (now served its use) it wont let me cos i have set it up as a system disk

How do i go about deleting it anyway? I downloaded partition magic and, because it may not have been completely legit () it sent avast mad constantly playing stupid sirens at me, so promptly removed it (it refused to boot anyway kept telling me ther was no drives names) So does anyone know of any way of deleting this stupidpartition as its pissing me off


Cheers