sorry to bother you folks, i'm working with acer notebook with win7 oem home premium X64 machine, n i'm having some crashing problem with my win7, most of errors come up with "class not registered", my control panel doesn't work few times for some categories, my virtual disk management (administrative tools) doesn't work either, n some Framework.Net stuffs. so does these sources folders will help me out to fix my problem, i think my bin files are deleted during virus infection, thanks to d#mn antivirus, thank to you folks i see Acer Home premium folder up there. so my question is, what i must to do with these files on my laptop? just copy? i really need your suggest, tutorial and your help dear gentleman..