A friend just gave me an old 40 GB drive he had in his computer to add as a second drive in my computer. I hooked it up and turned on my computer, everything worked fine. A 38.5 GB drive was showing up as drive F. There was still old data on the drive and it was also still in fat 32 because it was on a win98 machine. So I decided to reformat it to get rid of all the old files, and convert it to NTFS. It went through about 99% of the formatting process then said that it could not complete the format. Tried again and got the same result. So, I opened up computer management, then disk management from there. I converted it to a dynamic disc and added a new volume, and was able to get the formatting to complete. Now, the drive is only saying that it is 31.5 GB. Before, it was showing as 38.5. And it wont let me convert it back to a basic disk. What happened to the other 7 GB?