Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

Get Help has troubleshooters, or diagnostic tests, that can check your system configuration for anything that might be causing issues using your devices. View troubleshooter results. After you run any troubleshooter, Get Help provides details on any findings and suggestions for possible remedies.

Windows provides several recovery tools to help you troubleshoot and restore your PC when issues occur, such as startup failures, update problems, or malware infections.

Windows Recovery Environment (Windows RE) is a set of built‑in Windows tools designed to help troubleshoot and fix common system problems. If your PC has trouble starting, Windows RE can automatically launch and attempt to repair the issue.

If your PC is experiencing problems, especially issues related to Windows Update, you can use the Fix problems using Windows Update recovery option to reinstall the current version of Windows.

With Startup Repair, you can fix common problems that prevent Windows from starting up. Learn how access Startup Repair.

Support for Windows 10 has ended on October 14, 2025 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.

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

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.