Unable to install programs on Windows 11 ? Here's how to do it

erreur windows11 installation program

Dernière mise à jour: 18 mai 2024

You are having difficulty installing programs on Windows 11, especially if the app you're looking for isn't available on the Microsoft Store? Have you ever been stuck with an error message stating that your system is unable to install the program from a third-party source?

Don't worry, there are solutions to fix this problem! Our guide presents the key steps to follow to successfully install your programs on Windows 11, even from external sources.

Learn how to avoid errors and install your favorite apps with ease.

Why can't you install programs under Windows 11 ?

If you are having difficulty installing new programs under Windows 11, don't worry because there are solutions to fix this problem. Here are the most common reasons and solutions to help you install programs successfully:

  • Bug issues in the system Windows 11.
  • Incompatibility of the program with your PC's hardware and operating system.
  • Lack of security privileges or administrator rights.
  • App settings and permission.
  • Outdated version of a program.

Check for operating system update Windows

If you encounter the error "Unable to install programs under Windows 11 ", there are some troubleshooting tips to try.

The update of Windows to the latest available version is a great place to start if your PC is not working properly and giving you an error message when installing a new program.

  • To manually check for updates, simply tap Windows + I to access Settings.
  • Then, in the left panel, navigate to Windows Update.
  • Now click on Check for updates.
  • If an update appears prompting you to enter it, click Download everything and install.
  • Once the update has finished installing, restart the PC, then try reinstalling the program again, hopefully you'll be successful!

Check program compatibility with the latest version Windows 11

To check the compatibility of a program with Windows 11, there are several important steps you can follow.

First of all, it is essential to check the technical specifications of the program. Next, you need to make sure that your computer meets the minimum requirements to run the program correctly. This information is typically provided in the product release notes.

In addition, it is important to check the compatibility of your existing hardware and software with the new features offered by the program. To do this, you can consult the recommended technical specifications and system requirements.

If everything is in order, you can download the program to your computer and start using it on Windows 11.

Try enabling developer mode on Windows 11 for more efficiency

Another option to consider is enabling developer mode on your operating system Windows 11. Enabling Developer mode on Windows 11 can bring great comfort to users, allowing them to install programs from official and unofficial sources.

However, it is essential to exercise great caution when downloading applications from the Internet in their beta stage, as this can often result in bugs that affect your PC's performance.

It is therefore crucial to check the credibility of the website before downloading an application.

Here is a quick guide to enable developer mode on Windows 11 :

  • First, press Windows + I to access Settings.
  • In the left sidebar, click Confidentialité et sécurité.
  • Then click Developers area.

  • To activate the Developer mode, just click the switch next to it.

Uninstall and reinstall the new version of the program on your computer

Upgrading your app to the latest version is essential to benefit from regular updates and bug fixes.

To ensure that the process goes smoothly, it is important to uninstall the existing version of the program.

This can be done easily using the Search Console Windows.

  • To access the Control Panel, use the Search function. Windows by typing its name in the search bar.
  • Click on Programs and Features.
  • Then select the program you want to upgrade and right click on its name and an uninstall option will appear.
  •  Clicking on it will completely uninstall the program.

Completely uninstalling existing software before downloading a new version will help ensure a smooth installation process. After getting rid of your old app, you can proceed to download and successfully install the latest version.

Obtain administrator privilege to install a program on Windows 11

If you still cannot install a program on Windows 11, you can try to do it as administrator.

To do this, simply right-click on the application executable file and select the option “ Execute as administrator In the context menu.

If you are working in an environment where you do not have administrator privileges, you can ask the person who does have administrator privileges to install the program you need. Be sure to explain the purpose of the program and why you need it for your job. This will allow the administrator to make an informed decision about installing the program.

Check program installation permissions on Windows 11

You can also try allowing the installation of applications from anywhere.

To do this, follow these steps:

  • First, press Windows + I to access Settings.
  • In the left sidebar, click Applications.
  • Then click Advanced app settings.
  • Now go to the tab “ Choose where to get apps"
  • Finally, click on the drop-down menu next to this option and select “ Anywhere"

Rely on Microsoft's Troubleshooter

To resolve problems installing programs on Windows 11, Microsoft has created a specific troubleshooting tool. Using this utility, users can resolve issues on their own without the need for external assistance.

To launch the tool, simply search for "troubleshooting" in the Start menu and select " Troubleshooting Installing and Uninstalling Programs“. The tool will then guide you through the troubleshooting process, asking you questions about any problems you're having while downloading or uninstalling a program.

You can then select the affected program and begin troubleshooting. This tool is a simple and effective way to resolve program installation problems on Windows, without having to call a technician.


The inability to install essential programs under Windows 11 can be very annoying. However, unless there is an incompatibility problem between the program and the operating system, this problem should not be difficult to resolve.

By ensuring that all program components are compatible with your version of Windows and by performing a quick troubleshooting of your account permissions, you should be able to complete the installation in no time.