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 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 scan results, and manually replace the corrupted files if needed.

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 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 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 against detected threats.

Learn how to use the Xbox app, Xbox Game Pass app, or Microsoft Store to install games on your Xbox console or Windows 10/11 device from anywhere. You need to enable remote features, sign in with the same account, and allow installation from mobile.

Learn how to start an Office application in Office Safe Mode to troubleshoot problems or open files that cannot be accessed normally. Find out the restrictions and limitations of Office Safe Mode and how to enable or disable items.

Learn how to update your Xbox controller wirelessly, with a USB cable, or on a PC using the Xbox Accessories app. Updating your controller maximizes its capabilities and compatibility with your Xbox console or PC.

Learn how to use PC Health Check app to check your device health, Windows 11 eligibility, and troubleshoot performance issues. Find out how to install, update, and access the app features and settings.

Learn how to get the latest updates for Windows Security app and platform. Find out the current version numbers and how to manually download the update.