Some of my drives are not showing up in Microsoft Windows, how do I solve this problem?

This is a wrong "magic number" in the .kix files.

It could be that the number is wrong and is not allowing access to the drive letter assigned to the memory stick, cdrom drive or others. The number should allow access to drives D,E,G,S,J,and T

If you have a calculator handy this might help:

Magic Number Guide