At 11/13/12 10:51 PM, The-iMortal wrote:
Wut? Just reformat your hard drive. Viruses cannot effect any other components of your computer, except the data on your hard drive. A reformat deletes everything on that hard drive, and once you re-install your OS, you're good to go.
That's the cheapest solution. Might also be the best. If you think it's still worth it, by al means do. You can extend the life of a computer by keeping software up to date tremendously, reformatting and replacing hardware components that slow your computer down by buying new ones. Doing so is much cheaper, than buying a new one every x number of time.
However you can not do this infinitely. Eventually computers gets too old. Will not be able to handle up to date software. If you have to replace important, expensive or just many hardware at once it's time for a clean start, and buy a new one. Of course you can transfer anything you want (that's still worth it) from your old computer to the new.
Reformatting only gets rid of the viruses, but if a computer is full of viruses, there may be underlying problems. Those must be fixed as well. Out of date computers with an out of date operating system drivers, are more vulnerable to viruses. Reformatting is a lot of work, and there's no guarantee your computer will come out as good as it was before. Some programs may not reinstall (for reasons known or unknown), settings and preferences may be lost.
You'll have to look at how old your computer is, what you'd have to do to get it up to date, how much it is to buy a new one, how much money you have, and then decide for yourself what you think is best.