This article lists several solutions that may help improve your PC’s performance. We recommend trying all the listed solutions as multiple factors can contribute to slow performance.

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

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Oct 14, 2025 · It scans your computer for the problem and then tries to fix it so your computer can start correctly. This tool is particularly useful when your computer is experiencing issues such …

Oct 14, 2025 · Learn how to use the PC Health Check app to help you improve your device performance.

For example, you could create a rule to move all messages that are older than three months to an archive folder under On My Computer. To learn more about how to create rules, see Create a …

Search and find your relevant files from your PC and the cloud much faster than with This PC. If you’d rather have File Explorer open to This PC, on the ribbon, select See more > Options > …

Feb 4, 2025 · How to check if your device meets Windows 11 system requirements after changing device hardware. The notification "What needs your attention" displays during a Windows …

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.

Oct 14, 2025 · Resetting your PC in Windows is a powerful feature that allows you to restore your device to its original state, which can be useful whether you're experiencing performance …