HomeWindowsFix Error 0xa0430721 when Installing Microsoft Edge in Windows 10

Fix Error 0xa0430721 when Installing Microsoft Edge in Windows 10



It’s been a while since Microsoft has officially launched the Chromium-based Microsoft Edge browser. However, a lot of people are just beginning to notice this feature-packed browser. Edge introduced revolutionary browser functionalities that provide a better browsing experience.

Some of these features include support for Progressive Web Apps (PWAs), Immersive Reader, Read Aloud, nitty-gritty options like quiet notification requests, and a host of important features that address privacy and security concerns from users.

If you have not tried Microsoft Edge yet, now is the best time to do so. You can easily download and install this browser for your Windows 10 or macOS computer. Most likely, the installation will go along without any problem, but for some users, the following error appears when installing Microsoft Edge on Windows 10:

“There was a problem installing Microsoft Edge, Error Code: 0xa0430721”

What Causes the Microsoft Edge Error Code: 0xa0430721

Most users who complain about this error are those that downloaded the Microsoft Edge installer using another browser like Google Chrome or Firefox. When the download is done, the users directly click on the run button to install the app right away but after the UAC prompt, the error is generated.


How to Fix “There was a problem installing Microsoft Edge, Error Code: 0xa0430721”

Here is a method that has been proven to be effective in fixing the installation error and finally get Microsoft Edge installed successfully on your Windows 10 computer.

Modify Some Settings in your Registry Editor

Working with the Registry Editor can be harmful to your device if you are not careful. Make sure to create a back up of the registry and create a system restore point to be on the safe side.

  • Hit windows+R on your keyboard to open the Run dialog.
  • Type regedit and hit enter to open the Registry Editor.
  • Navigate to the following path:


  • Click on the following registry key entry and delete it.


  • Find the Microsoft Edge installer from your Downloads folder and then run it as administrator.
  • Click yes on the UAC dialog when prompted.

Microsoft Edge should now be installed on your device without any error. Even if you re-download the installer, it will run without the previous error no matter what browser you use to download it.


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