Causes of the Error: The error won’t let to install the latest definition update, which means that your operating system may have some security breaches. System file corruption can also cause 0x80072af9 error. A refresh or a repair install is usually effective in resolving this particular problem.
If you get an error code while downloading and installing Windows updates, the Update Troubleshooter can help resolve the problem.
Select Start Windows logo Start button > Settings Gear-shaped Settings icon > Update & Security Circular arrows Sync icon > Troubleshoot. Next, under Get up and running, select Windows Update > Run the troubleshooter.
When the troubleshooter is finished running, it’s a good idea to restart your device.
Next, check for new updates. Select Start Windows logo Start button > Settings Gear-shaped Settings icon > Update & Security Circular arrows Sync icon > Windows Update Circular arrows Sync icon > Check for updates, and then install any available updates.
If the problems aren’t all resolved, try running the troubleshooter again to check for additional errors, or see Fix Windows Update errors and follow the troubleshooting steps.
For more Windows Update troubleshooting info, see Troubleshoot problems updating Windows 10.
How to fix 0x800704cf error?
Ways to Fix Error Code 0x800704cf in Windows Download the tool for the first time and use it on your computer.
Run this computer program and then click the “Analyze” button. This is run to detect problems and anomalies on your PC.
Click the “Fix All” button to fix the issues found during the above scan.
How to fix 0x800706d9 error?
How to fix any error code 0X800706D9 in Windows 10. Clear Microsoft Store Cache. The Microsoft Store provides an easy way to download apps approved for use on Windows 10.
Use a different user account.
Check the storage service.
Run scans with SFC and DISM tools. Where
Change firewall reset settings and migrate Windows.
Use a restore point.
Reset and reinstall Windows.
How to fix 0x800700ea error?
Press the Windows R+ key to open the run window on the right.
On the welcome screen, click Next, then be sure to check the box next to Show more restore points before clicking Next again.
Select a restore point earlier than the date that the person who first saw it caused error 0x8007001E and click Next again.
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What does error message 0x80070299 mean?
This error has caused file corruption on some Windows systems as corrupted system entries pose a real threat to the health of your computer. Certain events can cause system file corruption, such as incomplete installations, partial uninstallations, and improper removal of applications or hardware.
Is there a Windows 10 update error 0x80072af9?
Microsoft will likely continue to roll out new measures that improve the overall Windows update experience on Windows 10 PCs. Despite expert claims, errors like 0x80072af9 are preventable. To resolve this scanning issue, check your main antivirus or Windows for file corruption errors.
How do I fix error code 0x80072af9?
Regardless, errors like 0x80072af9 are inevitable. To solve the above problem, check your antivirus scan as well as Windows for corruption. How to fix Windows 10 update error 0x80072af9? Try updating the system. Check Windows for corruption. Clean up junk files. Remove the update. Reinstall Office.
What is error code 0x80072af9?
Error 0x80072af9 usually occurs when a Windows update fails to install. This particular style of hexadecimal error code that says “No doubt such host is unknown.” Most affected users are advised not to upgrade to an updated version of Windows because a critical update with the exact error code 0x80072af9 will most certainly not install.
What does error code 0x80072af9 mean?
Error 0x80072af9 usually occurs when a Windows update fails to install. In particular, our hexadecimal error code says “node type unknown”. Most of the victims are unable to upgrade to a certain higher version of Windows due to the inability to install the full update with error code 0x80072af9.

Vijay is a tech writer with years of experience in the Windows world. He’s seen it all – from simple problems to catastrophic system failures. He loves nothing more than helping people fix their PCs, and he’s always happy to share his wisdom with anyone who needs it.
When Vijay isn’t fixing Windows problems, he likes to spend time with his wife and two young children. He also enjoys reading, playing cricket, and watching Bollywood movies.