i have win xp sp3 never had any kind of problem had norton 360 purchased software in past n now NIS 2009 untill 1 day while trying to lookup a song and all of a sudden next day when started computer started getting a msg from begaining of startup untill for every application got loaded saying " ___.exe - Bad image with a red x mark stating the application or DLL c:\WINDOWSsystem32\yoguyutu.dll is not a valid windows image. Please check this against your installation diskette". After this problem got in, my task manager stoped working which before 2 days from today i got back to working using task magaer fix but still not able to find a fix for disabled system restore it comes back with a error msg saying " cannot do system restore no changes have been made to your computer". It kind of worked once when i created new restore point but when tried to undo that new rstore point it did not work n now it seems like i cannot go back to select any past dates either. Did many scans with norton and spy doctor but no luck so finally here for help so please help for this annoying problem. Thank for your teams time and this great site hope to get fix