I have searched the internet for the solution to this and couldn't find anyone who had exactly my situation, so I am posting this here hoping that someone will know how to fix this. Background: I have an external HD (USB) that I used in the past for Linux (not an issue here) - and I re-formatted it to NTFS to use with Windows. It is a 160 Gig in size. I hooked the USB cable into the computer (I've got a windows, linux and mac here at home, don't ask...it's a long story) thinking that I could write to it using windows and read using the mac at least, if not Linux, although I know it takes some tweaking to get Linux to read it. I also understand Mac and the Linux box (OSX and FC6) aren't going to be able to write to the drive, and that's fine. I just want to store my music and pictures on it, and I will put them on using the windows box (WinXP Home SP2). I loaded iTunes on the windows box, it's already on the mac, I'll deal with a substitue for FC6 later, and loaded all the CDs (~1600 songs) I could find here at the house. I've also downloaded some stuff from iTunes, and it's all on there as well. It was dinner time, so I hit hibernate on the windows box, unplugged the HD from the AC outlet as its power cord was strung across the floor, and went to eat. When I came back I turned on the computer and once it was up and running I plugged back in the HD, and iTunes couldn't find anything that I had loaded. AC power? Check. USB? Check. Checked My Computer, it had another HD listed. I changed the location of my files on the iTunes setup or preferences or whatever it's called, and iTunes sees all my stuff on the 'new' HD. The HD that it was supposed to be on was F:\ and now it's all on G:\ . Looking at the icons for F:\ there is a big question mark on it, and there are no options when I right click for a pull-down menu. No way to browse the HD, no way to delete it, no way to do anything with it, cause Windows can't find it. Crap. <img src="http://www.glocktalk.com/attachment.php?s=&postid=7499667 "></img> I unplugged the HD, G:\ disappeared, hibernated the computer, and plugged it back in. When restarted it, I still have the unknown F:\ drive, and a good G:\ drive. I dont really care at this point what letter it uses, except that if it keeps changing, it'll be a pain in the butt to keep changing my iTunes settings, but I do want to get rid of the unknown F:\ drive. I have checked all thru the control panel, can't really FDISK something that doesnt exist, so I am at a loss. I have also restarted the computer with and without the HD conencted. Each time, whichever way I go, it loads it as G:\ and has F:\ missing. Can anyone point me in the right direction? what do I do to get rid of this disk? and possibly reset the HD from G:\ to a newly available F:\ ?