Keep your PC safe with trusted antivirus protection built-in to Windows 10. Windows Defender Antivirus delivers comprehensive, ongoing and real-time protection against software threats like viruses, malware and spyware across email, apps, the cloud and the web.
Antivirus programs provide a way to protect against known threats. The effectiveness of an antivirus program is heavily dependent on how often it is updated. Therefore, it is important to have the antivirus program scheduled to update daily. Most antivirus programs rely on a library or database of known viruses that they use to compare with programs on a user’s device. If a match is found, the malicious program will either be deleted or placed into a quarantine area from which a user can decide to restore or delete the program manually.