Learn how to use the Program Install and Uninstall troubleshooter to fix corrupted registry keys, prevent programs from being installed or removed, and more. Download the troubleshooter and follow the steps for Windows 10, 8.1, 8, or 7.

Learn how to diagnose and fix errors in your Outlook mail profile that might prevent you from connecting to your email. Follow the steps for Outlook 2016 or use the Microsoft Support and Recovery Assistant tool.

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 manually resize your recovery partition to install the Windows Recovery Environment (WinRE) update that starts on June 27, 2023. Follow the steps to check, disable, shrink, delete and create the recovery partition using Command Prompt and diskpart commands.

Learn how to download and install Microsoft 365 or Office 2021 on a PC or Mac with a Microsoft account, work or school account. Find out how to activate, change versions, and troubleshoot common issues.

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.

Learn where to enter your product key for different versions of Office or Microsoft 365, and how to install or reinstall Office after redemption. Find tips for troubleshooting product key issues and contacting support.

Learn how to download and install programs from online sources, such as the internet or the Microsoft Store app, on Windows 10. Follow the steps to save the program file, scan it for viruses, and launch it on your device.

Learn how to download and install the offline installer for Office 2016 from your account portal. Follow the steps to create a virtual drive, run the setup file, and activate Office 2016.

Learn how to download and install Microsoft 365 apps like Word, Excel, Teams, and PowerPoint on your PC or Mac. Follow the instructions in the browser and sign in with your Microsoft 365 account to activate the apps.