KB5039211 is a mandatory security update that will automatically start downloading and installing from Windows Update.
However, if KB5039211 fails to install, how can you get this update and experience the new features?
Listed below are some effective solutions you’re able to try.
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Now Windows 10 KB5039299 is available for version 22H2 in Windows Update.
Here is a tutorial about KB5039299 download.
How to Fix if KB5039211 Fails to Install on Windows 10
Fix 1.

Visit the official site ofMicrosoft Update Catalog.
TypeKB5039211in the search box and pressEnterto search for this update.
Find the system version that matches your system, then click theDownloadbutton next to it.
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When a new window pops up, poke the blue link to download the .msu file for this update.
Finally, launch the downloaded file to install KB5039211.
KB5039212 has been released for Windows 11 23H2 and 22H2.

If KB5039212 fails to install, it’s possible for you to attempt the approaches in this article.
Fix 2.
Here you might see how to use it to update to KB5039211.

Step 1.Go to the Windows 10 Media Creation Tool page.
Click theDownload Nowbutton underCreate Windows 10 installation media.
Once the download is complete, double-choose the Media Creation Tool to run it.
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Next, accept the notices and license terms.
In the new window, selectUpgrade this PC nowand clickNext.
Complete the download and installation process according to the instructions on your screen.

What is Nano11 23H2?
Where to download the Nano11 23H2 ISO file?
Here is a comprehensive guide for your reference.
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Here is the tutorial.
On your taskbar, right-click theWindows logobutton and chooseSettings.
Navigate toUpdate & Security>Troubleshoot>Additional troubleshooters.
ClickWindows Updateto expand it, then hit theRun the troubleshooterbutton.
Once it is completed, go toSettings>Windows Updateand install KB5039211 again.
Fix 4.
You are capable of recovering 1 GB of files in size with its free edition.
This post shows you several methods to get them back.