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 remove apps and programs from your Windows 10 or 11 device using different methods. Find tips and troubleshooters for common issues and errors.

Learn how to use the Windows Security Troubleshooter to diagnose and repair 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 how to use Windows File Recovery, a command line app from the Microsoft Store, to restore files that have been deleted from your local storage device. This app requires Windows 10 build 19041 or later and does not support cloud storage or network file shares.

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.

Learn how to determine whether your computer is running a 32-bit or 64-bit version of the Windows operating system. Follow the steps to view the System window or the System Information window and look at the System type entry.

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 find your BitLocker recovery key, a 48-digit number needed to unlock an encrypted drive in Windows. The recovery key can be attached to your Microsoft account, work or school account, printout, or USB flash drive.