If you’re worried you’ve got Conficker, use this handy eye chart to tell if you have it. (Instructions are on the page.)
But believe this — it’s not as bad as the news makes it out. (They do it for a quick buck.) At the very worst, where a virus lodges into the boot sector, you’d have to do a low-level format (overwriting everything) then a reinstall of the OS. Which is only a pr0blem if you never do backups.