Learn how to use a USB flash drive or DVD to install, reinstall, or perform a clean installation of Windows 10, 8.1, 7, or 11. Find the software download website, product key, and recovery options.

Learn how to use the Program Install and Uninstall troubleshooter to fix corrupted registry keys, prevent programs from being installed or removed, and access the product code. The troubleshooter runs on Windows 10, 8.1, 8, and 7.

Learn how to use the System File Checker tool (SFC.exe) to scan and restore Windows system files that are not working or causing crashes. Follow the steps to run SFC.exe, view the scan results, and manually replace the corrupted files if needed.

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 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 why you need to update your TPM firmware to protect your Windows 10 device from security vulnerabilities. Follow the steps to download and install Windows updates, firmware updates, and clear your TPM.

Learn how to fix your PC problems with different recovery options, such as resetting your PC, restoring from a system restore point, or using installation media. Find out which option to use depending on your situation and follow the steps to try to get things working again.

Learn how to check for and install updates for Windows 10 and Windows 11, and troubleshoot problems with Windows Update. Find answers to FAQs and links to service packs and activation.

KB5039211 is a security update for Windows 10, version 21H2 editions that includes a servicing stack update (SSU). It is released on June 11, 2024 and is the last update for these editions before end of service.

Learn how to use the media creation tool to create an ISO file to install Windows 10 on another PC or as a backup. Follow the steps to download, run, and select the language, architecture, and edition of Windows you need.