It’s every Windows user’s worst nightmare. You boot up your machine to
play some games do some work, but instead of seeing your usual desktop, you get a hideous pop-up claiming that viruses and hardware errors are destroying your computer. The warning is completely bogus, of course, generated by malware that’s trying to scare a credit card number out of you. But the phony program is right about one thing: your system has been infected, and now you have to deal with it. There are lots of genuine malware removers available for free that can help, but even with such noble code on your side it can be tricky to completely undo the damage—modern malware digs into a system like a tick, employing devious tactics to prevent its own removal.
Here’s how to deal with some of the most common infections.