Microsoft has learned of a Trojan horse program that is named W32/Berbew (variants A-H) that is downloaded after a Microsoft Windows-based client computer is infected with the Download.Ject malware.

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 help and learning. 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.

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

Get Help has troubleshooters you can run for many common scenarios. These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Run to start that troubleshooter.

Use the System File Checker tool to repair missing or corrupted system files. When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether.

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more. Note: Use these steps for Windows programs.

At the command prompt, type netsh wlan show wlanreport. This will generate a wireless network report that’s saved as an HTML file, which you can open in your favorite web browser. The report shows all the Wi-Fi events from the last three days and groups them by Wi-Fi connection sessions.

Settings is the main application to customize and manage Windows settings. It's designed with simplicity, accessibility, and ease of use in mind, providing a more intuitive and user-friendly experience than the traditional Control Panel.

Learn how to use the PC Health Check app to help you improve your device performance.