Howard this is the story: 3 days ago, my Computer was reformatted. Because it does not start up. it will boot but the suddenly a black screen with text like this (not on exact words, but sounds like this) "Windows could not start due windows/system32/c_ . . . . . is missing or corrupted" (i was not able to write down the exact file). my friendw told me to reformat my pc. i agree. Problem: 1) Whats the reason behind that? 2) Where did i get that? 3) How can i prevent it not to happen again? also a friend told me about those "hidden files" that can be included on download-songs. is there any connection about the "hidden files" regarding this matter? My anti-virus is SYMANTEC. is it a good anti-virus? pls Give me tips on securing my PC's safety.. big big thanks. More POWER!