We told you how to tell if you’re infected with malware. How about how to stop the infection from happening in the first place?
Yes, it’s possible to clean up an infected computer and fully remove malware from your system. But the damage from some forms of malware, like ransomware, cannot be undone. If they’ve encrypted your files and you haven’t backed them up, that's it. So your best defense is to beat the bad guys at their own game.