However, some users reported that KB5034123 failed to install.

Here this post onMiniToolfocuses on this topic and provides you with the most effective solutions.

This update made some improvements and fixes to known issues, such as Wi-Fi and security fixes.

Windows 11 KB5034218 Preview Build 22635.3130 Released

However, some users are having trouble updating to Windows 11 KB5034123, causing KB5034123 to fail to install.

This article is dedicated to helping you address this problem.

Windows 11 KB5034218 was released to the Beta Channel for Windows Insiders.

download KB5034123

This article introduces the new changes and fixes.

How to Fix if KB5034123 Not Installing

Fix 1.

This is a way of updating Windows manually by searching for a specific package.

select Troubleshoot

First, go to theWindows update catalog official site.

Second, typeKB5034123in the search box and pressEnter.

Third, click theDownloadbutton next to the needed update.

run the troubleshooter

Finally, in the pop-up window, follow the on-screen instructions to complete the necessary actions.

Press theWindows + Ikey combination to bring up the Windows configs window.

In theSystemsection, scroll down to clickTroubleshoot.

Windows 11 Insider Preview Build 23619 to Dev Channel Released

Next, select theOther troubleshootersoption.

In the new window, click theRunbutton next toWindows Update.

Also, it’s crucial that you take necessary actions during the process if necessary.

run DISM scan

Microsoft released the latest Windows 11 insider preview build 23619.

This post shows you whats new in this build in detail.

Fix 3.

turn off the real-time protection

Here you might see how to perform a DISM and SFC scan.

Step 1.Open an elevated command prompt.

In the command line window, typeDISM.exe /Online /Cleanup-image /Restorehealthand pressEnter.

How to Recover Data From Corrupted Windows 11/10/8/7

Once the command lines are executed, try updating to KB5034123 and test whether the installation is successful.

Fix 4.

Here we show youhow to disable Windows Defender.

Press theWindows + Ikey combination to open options.

ClickPrivacy & security>Windows Security>Open Windows Security.

In the new window, clickVirus & threat protection, then clickManage settingsunderVirus & threat protection prefs.

Turn off the real-time protection and other protection temporarily.

Then peek if KB5034123 can be installed.

Hope the methods mentioned above are beneficial to you.