December 31, 2022

How to Fix Windows Update Error 0xCA00A009

Reading Time: 4 minutes

Is the 0xCA00A009 error stopping you from updating Windows? Get it fixed with these quick tips.

The Windows Update Service is a built-in application responsible for managing the installation of Windows updates. Microsoft uses this service to release Windows updates and security patches. However, in some cases, Windows Updates may not work as they should and instead return an error message with a code, and one such error code is 0xCA00A009.

You may encounter this problem if you have upgraded Windows to the latest version. This article will guide you through some troubleshooting steps for getting Windows updates working again.

What Causes Windows Update Error 0xCA00A009

There are many factors that cause Windows Update errors, but the most common are corrupted or faulty system files. This problem can also occur if you upgrade from an older version of Windows 11.

Other possible causes that may result in this error code are listed below.

Corrupted system files or data in the SoftwareDistribution folder could result in this problem.
If you upgrade your OS from an older Windows version to Windows 11.
A startup program or service that conflicts with Windows Update may also cause it.

Let’s now move on to solutions.

1. Restart Your Computer

If you’re having problems updating Windows, and you’re getting the error 0xCA00A009, it’s likely that there is a file that is damaged or missing that Windows Update requires to function.

In this case, all you have to do is restart your computer and then update Windows again. It may sound simple, but sometimes it’s all you need.

Here are the steps to take:

Click the Start button, then click the power icon.
Then click Restart.

Your computer will restart and hopefully fix the 0xCA00A009 error.

2. Run Windows Update Troubleshooter

The next most basic solution is to run the Windows Update Troubleshooter. This is an excellent tool that you can use to fix some simple issues with Windows Update. These steps will show you how to use it.

Press Win + X to open the Quick Access Menu.
Select Settings from the menu list.
Click System from the left pane of the Settings menu.
Next, click Troubleshoot > Other troubleshooters.
Click the Run button next to Windows Update.

If the process detects any problems, it will try to fix them automatically. Once you have completed the steps above, restart your computer, then update Windows again to see if it fixes the problem.

3. Run SFC and DISM Scan

If you’re still seeing the error, it might be because of a corrupt system file. Try running the System File Checker tool to fix the problem. Here is a quick guide on how to do it:

Run Command Prompt as an administrator. To do this, search for ‘Command Prompt’ and select Run as administrator.
Type the below command line and press Enter:
```
 sfc /scannow 
```
The process will take a while to complete. Once it has completed the process, restart your computer and try updating Windows again.

If it still fails to update, run DISM to restore the system files and repair any corrupted images. Here’s how:

Open the Command Prompt.

Copy and paste the following command and press Enter:

 Dism.exe /online /cleanup-image /scanhealth
Dism.exe /online /cleanup-image /restorehealth

You may need to wait for a while for the process to be completed. Restart your computer after running the DISM command and check if the error has been fixed.

4. Update Group Policy

In case you have upgraded to Windows 11 from an older version of Windows, you may need to update your group policy. Here are the steps to follow:

Press Win + X and select Run from the menu list.
Type ‘cmd’ inside the text field and press Ctrl + Shift + Enter.
When UAC appears on the screen, click Yes to continue.
Now execute each of the following commands one by one:
```
 gpupdate
gpupdate /force 
```

When you are done with the above commands, close the Command Prompt window and update Windows again to see if the problem has been resolved.

5. Clear the SoftwareDistribution Folder

Software Distribution stores temporary files that may be required to run Windows Updates. And when these files become corrupted, these types of errors may occur. In this case, you can clear the contents of the folder and see if it works.

To clear the SoftwareDistribution folder, follow these steps:

Open Command Prompt with Administrative Privileges.
Type the following commands in the Command Prompt and hit Enter after each one:
```
 net stop wuauserv
net stop bits
net stop cryptSvc
net stop msiserver 
```
After executing the above commands, open Windows File Explorer and browse to ‘C:\Windows\SoftwareDistribution\.’
Inside the SoftwareDistribution folder, press Ctrl + A to select all the contents and tap Delete on your keyboard.
If you are asked to grant permission via a pop-up menu, click on Continue to proceed.
When you have deleted the contents of the SoftwareDistribution folder, you will need to restart any services that were stopped earlier. To accomplish this, open the elevated command prompt again and run the following command:
```
 net start wuauserv
net start bits
net start cryptSvc
net start msiserver 
```
Now type exit and press Enter to close the Command Prompt window.

When you have completed all of the above steps, restart your computer and try updating Windows again after you’ve completed all the steps.

6. Perform a Clean Boot

This problem may also occur when a startup program or service conflicts with Windows Update. In this case, you should perform a clean boot as explained below:

Open the Run dialog box.
Type ‘msconfig’ in the text field and click OK to open the System Configuration window.
In the System Configuration window, select the General tab.
Check the box next to Selective startup.
Uncheck the Load startup items box.
Switch to the Services tab now.
Select Hide all Microsoft services, then click Disable all.
Click Apply to save the changes.
Go to the Startup tab and select Open Task Manager. This will take you to the Startup tab in Task Manager.
Right-click each service on the Startup tab, and disable them.
Click OK when you’re done editing System Configuration.

Be sure to restart your computer after completing the above steps and follow up with updating Windows. If you find that this method solves your problem, you must have disabled the wrong service. To figure out which service is causing the error, enable them one by one.

It’s Now Easy to Fix Windows Update’s Error 0x80070057

Hopefully, this guide will help you fix Windows Update Error 0xCA00A009. In case none of these solutions work for you, you may need to reset your Windows computer.

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