I have no idea why you would want to load a legacy OS such as Win98 over Win 2K Pro, but I'm sure you have your reasons. First of all, I don't think your going to be able to load and run Win98 without first dumping Win2KPro. Another question in my mind for you to consider is: What type of file system are you using...NTSF or FAT? Some O/S will allow you to load legacy. But if your using NTSF, I would think that your going to have to re-format, re-partition and load Win98 using Fat32. Whatever the case may be, Microsoft.com has the answers for you. Be sure to backup your data.