First I'll give the details, as this is the first time I have ever done anything like this. After installing a new slave drive using Seagate's Diskwizard, this is now my current drive letter setup: A: Floppy 1.44 B: (empty) C: Master Storage D: Iomega Zip 250 E: CD-ROM F: DVD-ROM G: (new) Slave Storage Using Window's XP help, I was able to change the drive letters to this desired result: A: Floppy 1.44 B: (changed) Iomega Zip 250 C: Master Storage D: (changed) Slave Storage E: CD-ROM F: DVD-ROM G: (empty) This is prior to installing any new programs on the slave drive. I then restarted XP, and am now going to format the new slave drive. Two main reasons why I did this: 1) gives me a larger capacity boot up disk, as some boot up programs can be larger then a 1.44 floppy 2) I would rather have the master and slave storages setup with adjacent letters. My question and concern is, will this cause any problems? Will XP be stubborn about having two boot up drives? As I mentioned above, I have not formatted nor installed anything on the slave drive yet. And I wish to keep the letters at the new change, it is more organized for me. Still, it was rather TO easy to change the letters (in Windows?) so that's what worries me.