I am a new Computer Hope user who had a problem quite some time before I found this site. I searched Microsoft Help to no avail. Iwill give all the details that I can recall. When Microsoft switched from "Microsoft Antispyware" to "Windows Defender", I upgraded with no problem. Then one day, I received some sort of message that the program could not locate, or read (I don't recall for sure) some floppy disc. WHAT floppy disc?! One user who submitted a post on a Microsoft forum wrote that he just gave up and went back to the original Microsoft Antispyware, so I did, too. I attempted to upgrade 2 or 3 more times about once a week, and kept getting the same "floppy disc error", gave up, and have just stuck with the first version ever since. However, the first version is going to expire soon, and I'll have no choice but to find a fix or just delete the whole thing. I use several spyware programs, but really liked Windows Defender (when it worked), so does anyone have any thoughts on this? Thank you to all. UPDATE: I'm sorry, I completely overlooked an important fact when I wrote this this morning: I have Windows XP Home Edition with Service Pack 2.