..... It mite be the wrong format. Back in the good ol Days of floppy, there was ibm format, mac format, and pc format, since Ibm had their own hardware and software at the time, they had their own format. SOmetimes it could be used on windows, sometimes not. I reccommend you check the file type, and also make sure its compatible with windows. If its a mac disk it wont work. Etc etc. Think you got the point. LOl. later.