A friend (not local) is having problems booting up into Windows. He is running Windows 98 and when his computer is first booting into Windows he is receiving an illegal operation error with Explorer (Explorer itself, not IE). Once he acknowledges that error it just goes to the green background with no icons or anything. He is unable to boot into Safe mode. He does have a boot disk that can boot him into DOS with CD-Rom support. He is a very novice computer user so step by step directions would be needed. Thanks!