If you suspect your machine is infected with malware, you could troubleshoot the problem yourself, but you are probably better off seeking professional help. Seek an independent computer repair shop that has a good reputation. That will usually yield better results than using repair services operated by big box retailers.
Once your machine is cleaned and repaired, make sure you keep your anti-virus software and computer operating system updated. It's probably not a bad idea to take your computer to a repair shop for a diagnostic tune-up once a year anyway, just as you would get regular service for your car.
All this assumes you are running Windows. If you are using an Apple machine or a Chromebook or running Linux on your computer, you're most likely home free.
Story provided by ConsumerAffairs.