Fix 0xCA00A009 Windows Update Error

According to some Windows 11 and Windows 10 users, they are not able to update their OS. When they go to Settings > Windows Update and try to do the same they see download error code 0xCA00A009. If you are one of those users and want to fix Windows Update Error 0xCA00A009 then this is your destination. In this article, we are going to see why you are seeing this error code and how to resolve it.

Why am I seeing Windows Update Error 0xCA00A009?

Many reasons can cause the update error. More often than not, this is a glitch that is quite common, and if you are a veteran user, you may already be familiar with its notoriety. Other than that, the issue can occur because of corrupted system files or data of SoftwareDistribution and Catroot2 folder. The files can be corrupted by pending restarts or improper downloading of the Windows Update package. We will see how to recover them later in this article. The issue can also be because of conflicting Group Policies or broken WU components. They are relatively easy to fix, and you can do so with the help of this guide.

Fix Windows Update Error 0xCA00A009 on Windows 11

If you are seeing Windows Update Error 0xCA00A009 on Windows 11 and Windows 10, then these are the things you need to do:

1. Use Windows Update Troubleshooter
2. Delete SoftwareDistribution and Catroot 2 folder
3. Update Group Policies
4. Run SFC
5. Repair OS with Installation Media

Let us talk about them in detail.

1] Use Windows Update Troubleshooter

Let us start with the most basic solution. Using Windows Update Troubleshooter is a great way to fix some simple problems with Windows Update and you can run them with the help of the following steps.

For Windows 11

1. Open Settings.
2. Go to System > Troubleshoot > Other troubleshooters.
3. The run Windows Update troubleshooter.

For Windows 10

1. Open Settings.
2. Go to Update & Security > Troubleshoot > Additional troubleshooters.
3. Now, select Windows Update and click Run the troubleshooter.

After running the troubleshooter check if the issue persists.

2] Delete SoftwareDistribution and Catroot 2 folder

As mentioned earlier, these two folders can cause the error code in question. So, the best way to resolve them is by renaming them. This won’t affect your computer and Windows will automatically create new folders as soon as they are renamed.

Before renaming the folders, we need to stop some processes. So, open Command Prompt as an admin and execute the following commands.

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver

Now, execute these commands to rename both the folders.

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old

Once, you are done with that, it is time to restart the services that we have stopped.

net start wuauserv
net start cryptSvc
net start bits
net start msiserver

Finally, restart your computer and check if the issue persists.

3] Update Group Policies

If you are experiencing this issue after updating to Windows 11 from an older version of Windows then probably, your Group Policies are not up-to-date and you have to do it manually. Follow the given steps to do the same.

1. Open Task Manager by Win + X > Task Manager.
2. Click Options > Run new task.
3. Tick Create this task with administrative privileges and click Browse.
4. Now, go to “C:\Windows\System32”.
5. Look for CMD.exe and open it.
6. Your directory will be registered. Now, add a space, append ‘-update’, and click Ok.
7. Finally, run the following command in the Command Prompt window.

gpupdate /force

Wait for the process to be completed and hopefully, the issue will be resolved.

4] Run SFC

The issue can be because of a corrupted system image and the best way to solve it is by running a command. So, open Command Prompt an administrator from the Start Menu and execute the following command.

sfc /scannow

It will take some time, so, wait for a few minutes, then restart your computer and check if the issue persists.

5] Repair OS with Installation Media

If nothing works then you need to repair your Windows with Installation Media. This is especially useful if the issue is because of a corrupted Windows image. So, do that and check if the issue persists.

Hopefully, you are able to resolve the issue with the given solutions.

Read: How to delete Downloaded, Failed & Pending Windows Updates.

Windows 11 update failed to install on my computer?

If you want to troubleshoot this Windows Update failed issue then, first of all, you need to check which error code you are getting. Your error code will come with an error message as well, to troubleshoot the issue you need to have those two in order to identify the problem your system is facing. Then, you can search on our site using your Error Code and find suitable solutions. You can even try the solutions mentioned here, to get started, but it is better to know the exact error message and the error code to begin troubleshooting.

Read Next: Fix Windows Update Error 0x8007065e; Feature Update failed to install.