4 Ways to Fix Unable to Install Programs or Software on Windows 11

Quick Tips

• Microsoft’s Program Install and Uninstall troubleshooter can help fix issues preventing you from installing new programs.
• Ensure you have allowed Windows to install programs outside of the Microsoft Store.
• If you can’t install a specific program or software, check if it is compatible with Windows 11.

Try Basic Fixes

• Check program compatibility: Programs and games that worked perfectly on Windows 10 may not necessarily be compatible with Windows 11. Hence, check whether the program you’re installing is compatible with Windows 11. Typically, you can find such information on the app provider’s website.
• Run the installer as administrator: Most third-party app installations on Windows require administrative approval. Right-click on the installer file and select Run as administrator. Then, follow the on-screen prompts to see if the program installs successfully.

Fix 1: Run Program Install and Uninstall Troubleshooter

If the issue persists, turn to one of the Windows troubleshooters for help. Microsoft offers a Program Install and Uninstall troubleshooter that can automatically detect and fix any corrupted registry keys preventing program installations on Windows. Here’s how to use it.

Step 1: Get the Program Install and Uninstall Troubleshooter from Microsoft.

Step 2: Double-click on the troubleshooter to run it > click Next.

Step 3: Select Installing on the following screen. The tool will automatically start looking for any issues with the Registry files.

Step 4: Select the program you’re trying to install. If you can’t find it, select Not listed > Next.

From there, follow the on-screen instructions to finish the troubleshooting process. After that, try installing the program again.

Fix 2: Check Windows App Installation Settings

Windows 11 allows you to restrict app installation from sources other than the Microsoft Store to improve security. Windows will block all third-party app installations from unknown sources if you’ve previously enabled this setting. Here’s how to change that.

Step 1: Press the Windows key + I to open the Settings app and head to Apps > Advanced app settings on your right.

Step 2: Use the drop-down menu next to Choose where to get apps and select Anywhere, but let me know if there’s a comparable app in the Microsoft Store.

Fix 3: Uninstall the Previous Version of the Program or Software

Another reason Windows may fail to install a third-party program or software is if an older version of that program is available on your PC. If so, remove the older version of the program before running the installer again.

Step 1: Press the Windows key + R to launch the Run dialog box, type control, and press Enter.

Step 2: Switch the view type to large or small icons using the drop-down menu at the top right > click on Programs and Features.

Step 3: Select the program you wish to remove and click on Uninstall/Change at the top.

From there, follow the on-screen instructions to remove the program. Once removed, try running the installer again.

Fix 4: Enable Developer Mode

Enabling Developer Mode on Windows lets you sideload apps from almost any source. As suggestive of its name, the setting is meant for developers to install and test their apps. However, if you’re certain about the software’s credibility you’re trying to install, you can enable Developer Mode on Windows to install that program. Here’s how.

Step 1: Press the Windows key + I to launch the Settings app and navigate to Privacy & security > For developers.

Step 2: Enable the toggle for Developer Mode.