i am using mandrake move to repartition my upstairs computer runing windows XP because there is some free unparitioned space on the drive and i would like to resize the large windows partition to take up the whole drive (this is my parents computer im not a windows freak) when i go to resize the partition all i get is ntfsresize failed. and yes i have alredy tryed chkdsk /f

I don't trust mandrake repartitioning software on NTFS. I had it corrupt my drive one time. I stick with Partition Magic by PowerQuest

Make sure your ntfs partition is UNmounted before using ntfsresize.

Use the optional switches which ntfsresize has to gain more information about your ntfs partition.

Resizing and repartitioning are high risk operations, even more especially when the computer is somebody elses.

Ntfsresize before version 1.9 has difficulty with heavily fragmented ntfs. 1.9 is a big improvement, but warning! it's still in beta.

I wouldnt trust mandrake/linux ntfs modules either... I would stick to partition magic, or better yet (Ive suggested this several times today) use partition magic to COVERT the NTFS to FAT32.... the benefits of NTFS are not that huge, and it doesn't sound like you are concerned about file level security (which linux broke anyway Most importantly, you will still be able to read and write to the windows partition from within linux... whether you think so or not, you are going to want to do that eventually...

Well about partition magic im really not looking to spend alot of money i just want a quick free way to do this and i thought mandrake move was the best thing.
I have an NTFS partition on my latptop and i made an XP and mdk 9.2 dual boot no prob and i didnt loose any of my data on the NTFS partition.
also i have tryed unmounting and it dosent help

Are you numbering the partition? What I mean is do you put hda1, instead of hda? All int he /dev/ dir of course.

That's all I can think of. Go to google and look up the ntfsresize project page, there are step by step instructions out there.

im using DiskDrake. I dont think i numbered it

SystemRescueCD 0.2.12-RC2 includes both the latest stable ntfsresize 1.9 (built-in defragmentation!) and QTParted. I already used them several times and they worked great! I think QTParted is also a cooler partitioner than Mandrake's DiskDrake because it shows verbose messages, progress bars, etc.

I really like SystemRescueCD, it's always quite up-to-date. Mandrake Move has an older NTFS resizer.

Unfortunately it's also true that Mandrake 9.1(?) switched to destructive resizing if ntfsresize refused to make modification when NTFS had data at the partition end. AFAIK Mandrake changed this policy in a later release 9.2(?) as your incident seemingly demonstrates (data is no longer destroyed and it resizes only if it's safe).