See some of the most common upgrade and installation errors for Windows 10 and Windows 11, and what you can do to try to fix them.

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.

When upgrading to, or updating, Windows 10, you might encounter the error “We couldn’t update system reserved partition”, error code 0xc1900104, or error code 0x800f0922.

If you can launch the Microsoft Store but you are just having trouble finding or installing an app, see I can't find or install an app from Microsoft Store. Need more help?

Oct 14, 2025 · The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted …

Help to fix install errors for Office, such as "can’t install Office", "something went wrong" or situations where install hangs or activation fails.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

If you get an error that contains 30094 when you try to install Microsoft 365, here are some things you can try to fix the problem. We’ve listed the most common solutions first, so try them in order.

Sep 9, 2024 · Use the Deployment Image Servicing and Management (DISM) tool to install one or more checkpoint cumulative update .MSU packages. For more information, see DISM …