Users are often exposed to viruses on their machines. Virus scans help identify and remove potential threats on your machine. Windows comes with built-in protection called virus and threat protection that is suitable for most situations.
Make sure to regularly run a quick scan on your computer to check for vulnerabilities. These quick scans don't take long and make sure the most common threats are addressed.
If it is suspected that a machine has a virus, then it pays to be extra certain about possible infections. In that case, do the following:
Figure: If you suspect you are infected, run a quick scan, then a full scan and then when you don’t need to use your computer do an offline scan