Stay Protected With the Windows Security App - Microsoft Support
It includes features such as Microsoft Defender Antivirus, Windows Firewall, and Smart App Control, which work together to provide real-time protection against viruses, malware, and …
Keep your computer secure at home - Microsoft Support
Get tips to help protect your home computer from scams, malware, viruses, and other online threats that might try steal your personal information.
Protect my PC from viruses - Microsoft Support
Learn how to protect your Windows devices and personal data from viruses, malware, or malicious attacks.
How to start a scan for viruses or malware in Microsoft Defender
If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.
Virus and Threat Protection in the Windows Security App
Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.
Antivirus and antimalware software: FAQ - Microsoft Support
Close any non-essential apps during the scan. Open apps take resources, even ones you're not actively using, and may cause your machine to perform more slowly or unreliably. If you are …
Blocked attachments in Outlook - Microsoft Support
One of the most common ways of transmitting computer viruses is through file attachments. To help protect you and your recipients against computer viruses, Outlook blocks the sending and …
Troubleshoot screen flickering in Windows - Microsoft Support
Find out how to stop your screen from flickering in Windows.
Protect yourself from malware and phishing - Microsoft Support
Malware is short for malicious software, a program or file that is designed to specifically damage or disrupt a system, such as a virus, worm, or a Trojan horse.
Microsoft Support
Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.