The best way to combat viruses is to prevent them. There are several free and trusted antivirus programs available online. Your antivirus program should be running whenever your computer is connected to the internet.;
, If you haven’t recently, run a virus scan on your computer. If your antivirus program gives you the option, run an in-depth scan for root kits. Schedule scans for at least once a week to prevent future virus infections.
 Spyware and malware are programs that are installed behind the scenes, and can eat up valuable system resources running in the background. Windows Defender comes installed with a malware scanner, and many more are available online for free or for purchase.
Run a reputable antivirus program.
Scan your computer for viruses.
Perform a malware scan.
{"src": "wikihow-all_validation", "title": "How to Speed up a Windows 7 Computer1"}