Learn why you need to update your security processor or TPM firmware to protect your device from a vulnerability. Follow the steps to download and install Windows updates, firmware updates, and clear your TPM.

Learn how to use the System File Checker tool (SFC.exe) to scan and restore missing or corrupted system files in Windows. Follow the steps to run the tool, view the details, and manually replace the corrupted files if needed.

Learn how to remove apps and programs from your Windows 10 or 11 device using different methods. Find tips and troubleshooters for common issues and errors.

Learn how to use the Windows Security Troubleshooter to diagnose and repair Windows security problems by turning on UAC, DEP, Windows Firewall, and other features. Download the troubleshooter and run it on the affected computer or a flash drive or a CD.

Learn how to use the Program Install and Uninstall troubleshooter to repair issues that block programs from being installed or removed. The troubleshooter fixes corrupted registry keys and runs on Windows 10, 8.1, 8 and 7.

Learn how to use PC Health Check app to check your device health, Windows 11 eligibility, and troubleshoot performance issues. The app is updated periodically based on customer feedback and helps you make the most of your Windows PC.

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 restore your system.

Learn how to use various built-in tools to manage Windows, such as Control Panel, System Configuration, Registry Editor, and more. Find out how to access and customize each tool for your preferences and requirements.

Learn how to speed up your PC with Windows 11 or Windows 10 by updating, restarting, using ReadyBoost, managing page file size, freeing up space, and more. Find out how to check for updates, use Storage Sense, delete temporary files, and uninstall apps.

Windows Security monitors your device for security issues and provides a health report on the Device performance & health page. Learn how to view the health report, understand the key areas it covers, and fix any problems it alerts you to.