Juanita..... I don't use xp anymore but dumped my win8 trash bag and went back to win 7 here..... I also have system mechanic and been using it for near cant even remember .... but got a short message from them about xp users..... said if you have xp they will be providing security etc and stuff in the program for xp users to keep you on line etc using System mechanic. I think runs 25.96 forget since I use the pro version on all my computers...2 desktops and my laptop....might check it out see if may be a good thing for you.....win 8 is the millennium of 2014 for MS and has near bankrupted them plus killed PC sales.... new win 9 is due middle of next year think saying May 2015 chuck in Ok In a message dated 4/6/2014 10:39:15 A.M. Central Daylight Time, jkimble@xxxxxxxxxx writes: After using fixit to uninstall MSE It appeared MSE was gone but I keept getting error 0x 80070002. Kept searching using other phrases. Finally searched microsoft client error 0x80070002 got another fixit followed instrucrions worked like a charm. I have Windows xp. No more error 0x80070002 after rebooting.. Below is the fixit I found. Click on the link on this web page that says install and uninstall works great on xp. Since MSE want be suppored for xp someone else might need this. Hope it will help someone. http://answers.microsoft.com/en-us/protect/wiki/mse-protect_start/uninstalli ng-microsoft-security-essentials/316493c2-8885-46b0-afba-28ebd45c0838 Juanita