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.

Here are some ways to free up space so you can keep your PC up to date and running smoothly. These suggestions are listed in order, so start with the first one, see if that helps, and then …

Describes how to use the clean boot process to troubleshoot a problem in Windows

If it's a hard disk drive, select Analyze if you want Windows to check the drive to see if it needs optimization, or select Optimize to have Windows run optimization on the drive.

Run a malware scan manually Run a quick scan Turn Defender Antivirus real-time protection on or off To learn more about the Windows Security app and all its features, see Windows …

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 …

Training: In Microsoft Outlook, you can delete redundant email messages in your Inbox. Watch this online video to learn how to use the Clean Up Conversations tool.

Feb 4, 2025 · Microsoft recommends running the PC Health App in the current installation of Windows to verify that the device meets all requirements to run Windows 11. Running the PC …

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.

If you're a small business owner Find the information you need to build, run, and grow your small business with Microsoft 365. Visit Small business help and learning