Please help me.the "task manager" option from the taskbar options in my computer and the "folder options" from the toolbar in explorer.What should i do now.Niether i can end applications from task manager nor i can see the hidden files from folder options.i can only hide the files but cannot see them back.Olease help me

Please read THIS and after completing the steps outlined post a HijackThis log over in that section along with a brief description of your problem.

Do not post HijackThis logs in this section please.

If they give you an all clear please return to this thread and we will have other ideas.