If you can’t install, uninstall, or update a desktop program in Windows 10, the Program Install and Uninstall troubleshooter can automatically fix common issues such as corrupted registry keys or incomplete uninstall data.

If the Windows Installer engine is corrupted, disabled, or installed incorrectly, this may cause program installation issues. Use the following methods to identify any Windows Installer issues that may be causing problems when you install, uninstall, or update programs.

If you get an error message when you're uninstalling, try the Program Install and Uninstall Troubleshooter. If you're trying to remove malware, see Stay protected with Windows Security to find out how to run a scan.

Learn how to get older apps or programs to run on Windows 10 or Windows 11 by adjusting compatibility settings.

Learn how to find and install digital downloads from Microsoft Store. See instructions to download and install software directly purchased from Microsoft.

Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Learn how to download and install apps you need from your Microsoft 365 business subscription.

How to install programs on Windows from online sources, such as from the internet or the Microsoft Store app.

If you would like to install a program from a disc, use the following steps: Insert the disc into your PC or external CD-DVD drive, and then follow the instructions on your screen.

To open the Microsoft Store on Windows, click the button below. If you're having trouble launching Microsoft Store, here are some things to try: Reset the Microsoft Store cache: Press the Windows Logo Key + R to open the Run dialog box, type wsreset.exe, and then select OK.