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 Windows File Recovery, a command line app from the Microsoft Store, to restore files that have been deleted and are not in the recycle bin. This app requires Windows 10 build 19041 or later and supports local storage devices only.

Learn how to use the Program Install and Uninstall troubleshooter to fix issues with installing or removing programs on Windows. The troubleshooter also fixes corrupted registry keys and product codes.

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 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 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 update your Surface device with the latest drivers and firmware for Windows 10 or Windows 11. Find links to download packages, check for updates, and troubleshoot issues.

Learn how to download and use the Office offline installer to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your PC. Follow the steps for your plan and activate Office after installation.

Find out how to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Follow the steps to sign in, choose your language and bit version, and activate your product.

Fixes an issue in which recycled files are deleted permanently if you delete files from a DFS link in a network environment on a client computer that is running Windows 7 or Windows Server 2008 R2 after you redirect the Recycle Bin to the DFS link.