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 restore the Hosts file to its original state in Windows 11, 10, 8.1, 7 and earlier versions. The Hosts file maps hostnames to IP addresses and can affect network connectivity.

Learn how to check and install the latest drivers and firmware for your Surface devices. Find links for automatic and manual updates, and troubleshooting tips for Windows 10 and Windows 11.

Learn how to fix problems with your PC by using different recovery options in Windows 11, 10, or 8.1. Find out how to remove an update, reset your PC, use a recovery drive, or go back to a previous version of Windows.

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 create a recovery drive to reinstall Windows 11 or Windows 10 on your PC in case of major issues. A recovery drive is not a system image and does not contain your personal files, settings, or programs.

Learn how to create a USB flash drive or DVD to install or reinstall Windows 11, 10, 8.1, or 7. You'll need a reliable internet connection, a blank storage device, and a product key (if applicable).

Learn how to optimize your Windows device by customizing which applications launch on startup. Find different ways to configure startup applications from Settings, Task Manager, or File Explorer, and how to fix common errors.

Learn how to free up space on your Windows 11 or Windows 10 device to install important updates and improve performance. Find tips on using Storage Sense, Cleanup recommendations, OneDrive, antivirus software and more.

Learn how to use various built-in tools to customize and monitor your Windows device. Find out how to access and use Settings, Task Manager, Computer Management, Event Viewer, Control Panel, System Configuration, System Information, Registry Editor, Local Group Policy Editor, and Advanced System Settings.