Learn how to scan and repair missing or corrupted system files in Windows using the System File Checker tool (sfc/scannow). Follow the steps to run the tool, view the scan results, and manually replace the corrupted files if needed.

Learn how to update your Surface device with the latest drivers and firmware for Windows 10 or Windows 11. Find links for automatic and manual updates, and check your Surface model and OS build.

Learn how to open, update, and use the PC Health Check app to monitor and improve your Windows device performance. Find out how to check Windows 11 eligibility, backup and sync, battery and storage capacity, startup time, and more.

Learn how to create a USB drive that can help you reinstall Windows 11 or Windows 10 if your PC has a major issue. Follow the steps to select a drive, back up system files, and download Windows installation media.

Learn how to use Microsoft Defender Antivirus to scan and remove malware from your PC. Follow the steps to run an offline scan, view the results, and take action on the detected threats.

Learn about the security and quality improvements of KB5040427, a combined servicing stack and cumulative update for Windows 10 Enterprise LTSC 2021. Find out how to get this update, its file information, and known issues.

Learn how to use Windows File Recovery, a command line app, to restore files that have been deleted from your local storage device and can’t be restored from the Recycle Bin. This app requires Windows 10 build 19041 or later and does not support cloud storage or network file shares.

Windows 11, version 23H2 is a scoped feature update that includes new features from the latest monthly quality update for Windows 11, version 22H2. Learn how to install the enablement package that activates the new features with a single restart.

Learn how to create a USB flash drive or DVD to install or reinstall Windows 11, 10, 8.1, or 7. You'll need a reliable internet connection, a blank storage device, and a product key (if applicable).

Learn about the security and quality improvements of KB5041585, a combined servicing stack and cumulative update for Windows 11 version 22H2. Find out how to get this update, its file information, and its end of service notice.