This error code has been reported by many users from some forums like Reddit, Microsoft Community, etc.

And it was released on March 12, 2024, as part of March 2024 Patch Tuesday.

What is Windows 10 LTSC?

What Is Windows 10 LTSC & How to Download Windows 10 LTSC

Should you install Windows LTSC?

How to download Windows LTSC for 32-bit and 64-bit?

This post provides all answers.

download KB5035849

2024-03 Cumulative Update for Windows Server 2019 (1809) for x64-based Systems (KB5035849) Error 0xd0000034.

If you keep seeing this, try searching the web or contacting support for help.

This error code might help: (0xd0000034).

So, what to do when KB5035849 fails to install with 0xd0000034?

Move to the next part to find a solution.

According to users, manually installing the KB5035846 update works to fix this error.

Note that this way applies to all the affected operating systems.

Step 1: In a web online window, head to theMicrosoft Update Catalog.

Step 3: In the popup, tap on the given link to start downloading this installation file.

SSU helps improve the update processs reliability to alleviate potential problems while installing LCU.

Thus, before installing KB5035849, double-check you roll out the August 10, 2021 SSU (KB5005112).

Manually download and install this update via the Microsoft Update Catalog by following the step-by-step guide.

Hope this can easily solve the KB5035849 not installing issue.