So its my 2nd post about virus issues. Its just because I want to help users and after discussing it. We solve many problems. So with this, Users know better about the pc problems. What they do and how to fix it ?

My 2nd question is about to how to enable run,task manager , remove auto play, show hidden folders if system infected with virus . I want to know that how to do this manually.

Yes there is way. But I know only for XP. Don't know vista maybe the same method apply on vista. Anyway do a simple thing. Just go to your run dialog and type gpedit.msc (Group Policy). A window appears. Go and read the options there like enable or disable task manager,allow registry etc and change it for what you want to set there. I think with this you can solve the problem.