I run two OS now and installing Win 98 shouldn't be a problem. Win 98 will need it's own partition and formatted to fat 16 or fat 32. You can do this in Admin tools in your Settings browser. When I created my partition, I sized it to the year I was born, so when I when Win 98 looked for a storage space, I selected the one with my birth year and spare myself the headache of formatting over any other partitions. Hope t5his helps!