Hello I am facing some sort of weird issue. There is an exchange 2000 running on server 2000. c drive has exchange installed and actual database is on d drive. When you right click on c drive, it tells you that drive is 10 GB and 4 GB's are taken with 6 GB of free space. But when I try to run a defragmenter program (windows built in, diskeeper or raxco) on c file system, it tells me there is no enough space on drive and showing as 98% full. What is wrong here? I tried googling with no luck. Has anyone faced such a thing? Thank you for assistance Attention: This message, including any attachment(s), is intended only for the use of the individual(s) to which it is addressed and may contain information that is privileged or confidential. Any other distribution, copying or disclosure is strictly prohibited. If you are not the intended recipient or have received this message in error, please notify us immediately by reply e-mail and permanently delete this message including any attachment(s), without reading it or making a copy. Any outgoing message has been scanned for possible harmful file(s) or script(s), but it is your sole responsibility to run detection tools as we won't guarantee the safety of message(s).