Viruses nowadays

As much as viruses are more common to find on a windows computer compared to like 20 years before, they are not AS destructive as the old ones. I mean the old viruses would like reformat your hard drive, delete files etc etc. Now most of the biggest viruses merely takeover your computer or try to downloading more spyware etc. I think the taking over viruses are the most common. Although there are still a couple of viruses that still do destructive work like that one virus I heard that would delete all your mp3s or rename them randomly.

>>10
While it would be hard, they could have code to modify formatting utilities on the fly to install themselves back, as well as booting from any boot sectors, but this still doesn't make them infallible (you may very well boot with a clean diskette and format).

Eventually, an anti-virus would be able to detect any kind of virus.