How to fix 0x80072af9 Error Code on Windows 11/10

Several users have claimed 0x80072af9 Error Code on Windows 11/10 while installing an update or syncing mail app. The above mention error gets prompted on the user’s screen with the following message: “No such host is known”. The reports says that the user encounter this error in various situations like sometimes users face this issue while using Microsoft Store or sometimes while using Outlook. But mostly this error was reported while trying to update to a superior Windows build.

Well if you are facing the above mention error in any of the above mention situations then you can totally rely on this blog. In any situation this error indicates malfunctioning of your system and of course corrupted system files. But keep in mind that there are other potential reasons that lead to this error which includes: interference of third party software, interrupted connection between your machine and the WU Service.

How to Resolve 0x80072af9 Error Code on Windows 11/10

Method 1: Uninstall 3rd Party Security Software

As we have earlier mentioned that one is likely to face the above mention error because of the interference of the 3rd Party Software. So kindly uninstall third party security software by following the below mention guidelines:

Via Control Panel

You can use Control Panel to uninstall a program. All you need to do is tap on the Start button and locate the Windows System folder>Switch to the Icon View and find Programs and Features. Then find and right-click on the program you want to delete/remove. And then press the Uninstall button.

Via the Start Menu

You can also use Start Menu. Simply Press Start button and locate the program that you wish to remove. Then right-click on the problematic program and select Uninstall after that Just confirm your choice and the program should be Uninstall.

Via App Settings

First of all open Settings>Apps>Apps and Features. Then you will see a list of programs you can uninstall. Find the security program here and click on it and then select Uninstall.

Method 2: Use the Windows Update Troubleshooter

Several users have claimed that using the Windows Update Troubleshooter resolved their issue so you can also try this method to help yourself.

Here’s how:

Step 1: On your keyboard press Win + R keys together to start the Run utility>then type in ms-settings: troubleshoot into the text area and press Enter key. The Settings app will open and you will be taken to the Troubleshooting tab right away.

Step 2: Then scroll down and find Get up and running section> tap on Windows Update and then select Run the Troubleshooter button.

Step 3: Once the initial scan begin you need to wait until it gets completed

Step 4: Press the Apply This Fix button if a fix is recommended> once done then exit the troubleshooter and restart your computer.

Method 3: Install the Problematic Update in Tablet Mode

It is has been observed that using the tablet mode while installing the problematic update is an effective way to get past the error.

To do so follow the below mention guidelines:

Step 1: Tap on the notification tray on the bottom right side of the screen>then select Tablet Mode to enable it

Step 2: Now press Windows + R keys to launch Run window>then type in ms-settings: window update and press Enter key. It will open the Windows Update Menu

Step 3: Lastly Check for Updates button and follow the instructions to install the problematic update

Method 4: Use System Restore

In this method we suggest you to use System Restore by following the below mention guidelines:

Step 1: Press Windows + S keys and enter System Restore >then choose Create a Restore Point from the list of results

Step 2: The System Properties window will appear, you need to click the System Restore button

Step 3: Once the System Restore window opens click on Next >If available, check Show More Restore points. Then Select the desired restore points and click on Next

Step 4: You need to follow the on-screen instructions to compete the restoration process

Method 5: Install Any Pending Window Update

You are suggested to install the pending updates on your PC by using the following guidelines:

Step 1: Navigate to the Windows Search field and type in Windows Update>click the Check for Updates button

Step 2: If an update is available, Windows will automatically install it for you.

Method 6: Clean Up Junk Files

You can also use built-in Windows tools to clean up junk system files and to do the same follow the below mention instructions:

Step 1: Press Windows + R keys together to open Search Windows>then type in Cleanmgr (or Disk Cleanup) and open Tool

Step 2: Them choose System Partition (most of the C:)

Step 3: Now click Clean Up System Files> the process will clean junk files.

Method 7: Run SFC Scan

As we have earlier mentioned that corrupted system files are very much responsible for prompting 0x80072af9 Error Code on Windows 11/10 error. So in such condition, you really need to run a built-in utility tool to check the integrity of your system files.

To do so follow the below mention steps:

Step 1: On your keyboard press Windows + X keys to open Win + X menu and then select Command Prompt or PowerShell (Admin) from the list

Step 2: After that enter sfc/scannow and press Enter key

Step 3: Once the SFC Scan starts it will take 15 minutes so kindly don’t interrupt the process.

In case SFC Scan didn’t works for you then we suggest you to run DISM /Online /Cleanup-Image /RestoreHealth command.

DISM scan will take 20 minutes or more so wait till the process gets completed.

Method 8: Perform a Repair Install

If none of the above mentioned methods then we suggest you to Repair Install. A Repair Install will allow you to keep your personal files and applications. It will only refresh your OS. So you can give a chance to this method.

Instant Solution for Windows Issues

Sometimes it happens when the manual methods are not enough for you so in such case we recommend you a PC Repair Tool which will scan your repositories and replace the corrupt and missing files. Well this tool works in most of the cases where the issue is originated due to system corruption. So try this tool once to get past all the PC related issues.

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That’s all about 0x80072af9 Error Code on Windows 11/10. We hope that this blog was helpful for you.

Samir Prakash Author