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 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 restore files from a backup or a previous version after you can't find them on your computer or you deleted them by mistake. Follow the steps to access previous versions of files and folders from Windows Backup or restore points.

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

Learn how to update your controller wirelessly, with a USB cable, or on a PC using the Xbox Accessories app. The app lets you customize the Xbox Elite Wireless Controller Series 2 and check for new updates.

Learn how to locate your BitLocker recovery key, a 48-digit number needed to unlock an encrypted drive in Windows. See where to find it attached to your Microsoft account, work or school account, printout, or USB flash drive.

Learn how to use PC Health Check app to check your device health, battery capacity, storage capacity, startup time, and Windows 11 eligibility. Find out how to install, update, and troubleshoot the app.

Learn how to perform a clean reinstallation and update of Windows 10 while keeping your personal data and most Windows settings intact. Fresh Start lets you reset your PC, choose cloud or local, and restore preinstalled apps.

Learn how to clear disk space on your Windows 11 or Windows 10 device with Storage Sense, Cleanup recommendations, and other tips. Find out how to avoid low disk space errors and keep your PC updated and running smoothly.

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.