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.

When you start your computer successfully, the Windows Registry Checker tool (Scanreg.exe) creates a backup of system files and registry configuration information (including user account …

Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

Some can be helpful, such as when a bank website displays your monthly statement in a pop-up window. Pop-ups can also be distracting or malicious, engaging in phishing tactics such as …

Jan 12, 2007 · The sfc /scannow command will scan all protected system files and replace corrupted files with a cached copy. The scan results will be shown after this process is finished.

Microsoft Defender Antivirus continuously scans your device for potential threats and takes immediate action to neutralize them. This proactive approach helps to prevent malware …

If you're concerned and want to have Microsoft Defender run a scan right now, you can do that by going to the Device protection page from the Microsoft Defender dashboard.

This article contains lists of tools and resources that Microsoft makes available to help you understand how to avoid or remove malware and viruses from your Windows-based computer.

Windows Defender and Microsoft Security Essentials are powerful scanning tools that find and remove malware from your PC. Here's how to use Windows Defender in Windows 8.1 or …

Use antimalware programs, such as Windows Security, whenever you’re concerned your PC might be infected. For example, if you hear about new malware in the news or you notice odd …