#What is mft free space free

I would guess that when you converted to NTFS, no space was properly reserved. Of course, on a 20GB partition, that means 2.5GB is reserved.

#What is mft free space free

The space gets reserved when you create the partition, and is just saved so it gets used only if the entire rest of the free space is used up. The reserved zone is where the MFT CAN go if it needs to. The default setting for NTFS is 1/8th of the total volume space being reserved for the MFT. I doubt it is a JetDefrag issue, but it might be a DI issue. I do have the latest updates to the program, though this new outfit hasn't done a thing to it since it was spun off 9 months ago. I'm new to NTFS and didn't heard of this even existing untill now. I looked at the M$'s KB and it doesn't tell you a whole lot and doesn't answer the question. It has the ability I just found out to display the MFT and the MFT Zone prior to doing a defrag that Norton doesn't/can't! It shows a one huge block after the first block of data (.exe's) BTW, the defrag program I use is from vCom (formerly Ontrack) called System Suite V4 Jet Defrag. There are no errors reported by chkdsk or chkntfs and all seems to work.

I have 2 boxes both with 2 bootable HDD's all running 2k that I just converted over from FAT32 to NTFS.ДЄfter doing so I did a disc to disc copy using Drive Image from a bootable floppy (actually a partition to partition copy) and found the MFT Zone grew from less than 70 MB to over 600MB! To be acurate, 650MB and 1GB!ДЄny one else have this experiance or has copied a converted drive over to another?