Error 0xa0430721 When Installing Edge or Chrome on Windows 10/11

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Edge and Chrome are the front runners of the Windows platform. So, if you encounter problems with them, we wouldn’t be surprised if you search the web for possible solutions.

Now, you’ve probably come across this error message while installing any of the two browsers: error 0xa0430721. That is the reason why you’ve landed on this page.

What is error 0xa0430721 when installing Edge or Chrome? Fortunately, this post is designed to help highlight the possible causes of this error depending on the browser being installed, and provide effective solutions to mitigate the issue. Regardless of being a less experienced computer user, the terms and solutions provided in this article are jargon-free and easy to follow.

About Error 0xa0430721

When attempting to install Edge or Chrome, a message pops-up stating:

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There was a problem installing. Error Code: 0xa0430721.

The main culprit in this scenario is usually the other browser used to download the installation file. For instance, if you download Edge using Chrome and attempt to directly install the former , the error might occur just after the UAC prompt.

There are means of resolving this error. The best part is that it is rarely caused by a virus infection. However, to be on the safe side, use a trusted anti-malware security tool to scan for virus threats, especially when this error occurs before initiating our suggested fix.

Windows 10/11 Error 0xa0430721 When Installing Edge

If the issue occurs when attempting to install Edge on Windows 10/11, try the recommended solutions below. However, before initiating the process, we advise backing up your system registry or at least, create a restore point for the computer. This is just a precautionary measure in case some of the registry operations get messed up. Once the registry has been corrupted, irreversible damage to the system can occur. After this precautionary measure has been done, proceed to the following steps:

  1. Launch the Run dialog by pressing Windows + R keys.
  2. Type Regedit into the dialog box and press Enter. This will launch the Registry Editor.
  3. Locate the registry key shown below;
  4. Once you’ve reached the location, insert the entry shown below on the left panel before clicking Delete:
  5. Exit the Registry Editor and reboot your system for the edits to take effect.

Once your system has completely rebooted, download MS Edge, or if already downloaded, right-click on the installation file and click Run as administrator. When the UAC prompt appears, click Yes. Edge will then install without encountering an issue.

Error 0xa0430721 When Installing Chrome

If this error occurs when installing Chrome, the following message appears:

Egads! Installation failed. Error code: 0xa0430721

Error 0xa0430721 appears when attempting to install Chrome using a corrupt installer. If this is the situation at hand, try the following recommended solution to rectify the error:

The known remedy for this issue is to get the offline installer for Google Chrome. Once downloaded, right-click on the installer package and choose Install as admin. The process should install the browser without any issues. However, if the solution does not work, try downloading the offline installer for Google Chrome to a local drive. Choose to Restart the system in Safe Mode. Locate the Google Chrome installer file and double-click on it to initiate installation. This should help solve the issue.

More Information

For those wondering why these two platforms are experiencing the same error code, let us briefly help you with that. Recently, Microsoft Edge browser crossed over to Chromium platform, which means it now uses the same engine as Google Chrome. This is quite visible in the way Edge currently looks and functions. However, it managed to keep most of its features such as Cortana search, Audio cast, wireless connection to cast videos and images, and InPrivate Mode. Since both browsers are Chromium-based, it makes sense for the same error code to appear on both platforms.

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