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.

Get the world’s largest threat-detection network and machine-learning malware protection in a single, lightweight malware scan and removal tool — 100% free.

Sep 24, 2025 · In many cases, using a combination of your computer's built-in Safe Mode and an antivirus program will be enough to remove a virus. Keep in mind that not all viruses will be …

Oct 21, 2025 · Right-click on the malicious file or folder in File Explorer. Select Scan With Microsoft Defender. Using Windows Security, Microsoft’s included antivirus software, you can perform either a …

Sep 5, 2024 · Running a full system scan on Windows 10 is an essential task to ensure your computer is free from viruses, malware, and other security threats. In just a few steps, you can use Windows …

Jun 17, 2024 · Whether you have a virus or another kind of malware on your laptop or desktop computer, use a virus and malware removal tool and follow these steps to scan for viruses and help …

Feb 27, 2025 · We reveal how to check for viruses and remove them from all major devices, including PCs, Macs, Androids, and iOS. There are several indicators that your device might have a virus. …

Sep 5, 2024 · These are general steps to scan and remove malware from your PC and should apply equally to Windows 11, Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP. …

Jun 19, 2025 · To do it, open Windows Security, head to Virus & Threat Protection, and click “Quick Scan.” This will help keep your system squeaky clean and running smoothly. Scanning for viruses on …