[triplezzz21]

I am using the vista Disk Managment to do partition.
It works for my external harddrive, but it doesn't work on my C drive.
I shrinked my NTFS C drive by 3gb and an unallocated 3gb volume comes up.
But when I tried to make it a simple volume, an error message comes up and says "There is not enough space available on the disk to complete this operation" even though I have 105gb of free space.

Any suggestions?

thanks in advance

[triplezzz21]

anyone?
Any comment is ok

[uhaligani]

Have you tried deleting the unallocated space and reactivating it by formatting?

[Elvandil]

Try doing the partitioning offline from the Vista Recovery Environment. It's much easier because Vista is not running.

[triplezzz21]

How do I partition offline?

[Elvandil]

Boot from the Vista DVD, choose the repair options and get a command prompt, and then run diskpart.exe. Use /? for options.