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From time to time, some Windows 10 users encounter error 0xca00a000 when they install an update for the system via Update Center (WU). Users often complain about the appearance of this code during the installation of the update under the number KB4056892.

Causes of Error 0xca00a000

• The update is already installed on the system.
• Windows Installer Service is disabled.
• The update being installed was not downloaded properly.

Methods for solving error 0xca00a000

Method # 1 Checking for an update

Before you start following the other methods in this article, we advise you to check if the update that generates error 0xca00a000 is already installed on your system. It is extremely simple to do this:

• press Win + R, then run appwiz.cpl;
• click LMB on the line “View installed updates”;
• carefully examine the list that appears for the update indicated next to the error in WU.

If the problematic update is not listed, then move on to the article. If the update is still found, then you need to download the following tool from Microsoft, which will help hide the update from the system. Simply put, WU will stop trying to install it and move on to the other updates on the list.

Method # 2 Run the troubleshooter

If there is no update on your computer, we advise you to run the WU troubleshooter. This system tool will scan your OS for issues preventing a normal update and then provide a solution for them. The process is almost completely automatic, so you shouldn’t have any problems.

Do the following:

• press Win + R and then execute ms-settings: troubleshoot;
• select “Windows Update” in the list and click on the “Run the troubleshooter” button;
• Wait a moment for the tool to finish scanning Windows.
• click on the “Apply this fix” button or do what the tool asks you to do.

This method, of course, does not always work, but some users manage to get rid of the error 0xca00a000 with the help of it.

Method # 3 Changing the launch parameters of the Windows modules installer

The Windows Modules Installer service plays an extremely important role in the system update process. It may have stopped working on your computer, or its settings have been changed. Try this:

• press Win + X and select “Command Prompt (administrator)”;
• write the command in the window SC config trustedinstaller start = auto and press Enter;
• after the command completes, restart your computer and try to install the update again.

Method # 4 Installing the update manually

Windows Update, for one reason or another, simply does not allow you to install the update you want. What to do in this case? The answer is to install the update yourself. We pass on this link to the Microsoft Update Center catalog page and look for an update by its number. Download the MSU file and install the update – that’s all. No error 0xca00a000 in this case will alarm you.

Method # 5 Cleaning the SoftwareDistribution folder

Something might have gone wrong while downloading the update, causing WU to run into problems installing it. You need to clear the SoftwareDistribution folder, which stores the downloaded updates for the system, and then repeat the download and installation of the update.

• Call the Command Line in front of you, as shown earlier;
• run the following two commands in it:
  • net stop wuauserv
  • net stop bits
• then open Explorer and go to the following directory:
  • C: Windows SoftwareDistribution
• delete absolutely everything from the SoftwareDistribution folder;
• reopen Command Prompt and run the following two commands:
  • net start wuauserv
  • net start bits
• restart your computer.

We go to WU and try to update our PC again. The error 0xca00a000 could go away.