I can't defrag, i have 2 partitions on a 250 gb seagate hard drive. Disk C defrags, it's Disk D: thats seems to always have a checkdisk scheduled. I use diskeeper to defrag and the prog tells me it can't defrag disk D: besause of the scheduled checkdisk. I also use a registry error correction prog(tuneUp utilites 2007), I think that may have caused this problem, also all backups of registry it creates were deleted. Checkdisk also runs on every bootup, checking Disk D ofcourse. Tried numerous ways of fixing this by reading several postings online. Need some feedback ASAP Thankxxx!