Learn how to scan and repair missing or corrupted system files in Windows using the System File Checker tool (sfc/scannow). Follow the steps to run the tool, view the scan results, and manually replace the corrupted files if needed.

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 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 troubleshoot sound or audio issues in Windows 11 or Windows 10 with step-by-step instructions and tips. Check your speaker output, run the audio troubleshooter, update or uninstall your audio driver, and more.

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 locate your downloaded files on your PC using File Explorer or your browser settings. Follow the steps to access your Downloads folder under Quick access or This PC.

Learn how to get to the Desktop, Documents, and Pictures folders in File Explorer by default or by pinning them in Quick access. Find out how to restore the left navigation pane and the standard Windows 11 user file folders.

Fresh Start is a feature that lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact. Learn how to access Fresh Start and reset your PC in Windows 10 or 11.

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.