To block threats from malicious websites, use a modern browser like Microsoft Edge, which uses Microsoft Defender SmartScreen to identify sites with poor reputation. Upgrade to the latest version of Windows to benefit from a host of built-in security enhancements.

Find out what to do if your game crashes because of your antivirus software on Windows 10.

Provides links to the uninstall tools and directions for many security programs.

Real-time protection is a feature in the Windows Security app that continuously monitors your device for potential threats such as viruses, malware, and spyware. This feature ensures that your device is actively protected by scanning files and programs as they are accessed or executed.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.

Microsoft security software protects you against malware, spyware, adware, and other unwanted software; you don't need to install any other real-time antivirus or antispyware software. You can always download and run our on-demand security scanners, such as the Microsoft Safety Scanner or Microsoft Defender Offline.

Here's how to do that on Windows, Mac, or Android.

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

Troubleshoots and fixes common issues with security and malware prevention in Windows.

Microsoft Defender's real-time anti-malware protection runs whenever your device is on, keeping an eye out for malicious activity. Microsoft Defender will also run quick scans of your device on a daily basis, in case anything manages to elude the real-time protection.