Why did I get error KB4043766?

This article will explore the possible causes of Windows 10 error KB4043766 and take an in-depth look at how to fix this issue. This is a Tech Support forum and post, but that’s not very helpful if you’re unaware of what it is and why it occurs in the first place.

What is the KB4043766 error message?

If you receive an error message like KB4043766 when you try to update your Windows 10 PC, there might be a problem with your hardware. Try these steps to solve the issue:

1. Make sure that the latest updates for your computer are installed. This includes both minor updates and major updates.

2. If you’re using a wired Ethernet connection, make sure that the cable is properly connected and not kinked or twisted. If you’re using a wireless network, make sure that the network is secure and has an adequate signal strength.

3. If you have a compatible drive, try installing the latest driver for your storage device. These drivers can often fix common problems with devices like USB flash drives and CD/DVD drives.

4. If none of these solutions work, it might be time to take your computer to an authorized service center to have it checked out.

Why did I get this error message?

I received the following error message when trying to install the update for KB3138612:

The installation could not be completed because of an error. Contact your system administrator.

I attempted to install the update on two different machines and received this message on both occasions. I’m using Windows 10 Enterprise Edition, version 1709.

A few weeks ago, I upgraded my computer from Windows 10 Pro to Enterprise Edition. At the same time, I installed all of the latest updates, including KB3138612. After installing and restarting my computer, I attempted to install KB3138612 again but received the same error message. According to Microsoft support forums, other users have also experienced this problem after upgrading to Windows 10 Enterprise Edition.

This seems like a serious issue that needs to be fixed as soon as possible. If you are experiencing this problem, please try reinstalling Windows 10 or contacting your system administrator for assistance.

How do I fix the KB4043766 error message?

If you receive an error message like the one shown below, it means that your computer is not compatible with the latest update for Windows 10. To fix this problem, follow these steps:
1. Go to Settings > Update and security > Windows Update and select Check for updates.
2. If there are any new updates available, they will be displayed in the window that pops up. Click on the Download and install button to start the download process.
3. When the update is complete, click on the OK button to install it. After it’s installed, try restarting your computer to see if the error has been fixed.


If you’ve recently been getting an error code like KB4043766 when trying to install or update an app, there are a few things you can do to troubleshoot the issue. The first thing to try is reinstalling the app from scratch, as sometimes this will fix problems that might otherwise be difficult to track down. If that doesn’t work, try uninstalling and then reinstalling the app, checking for updates while it’s uninstalled and after it’s installed again. Finally, if all of these steps fail to solve the problem, you might need to contact the developer of the app for assistance.

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