How to Fix Installation Error 0xCA00A009 in Windows 11

Several users complained of getting an error code 0xCA00A009 while trying to upgrade their devices to Windows 11. If you are also one such user and are getting annoyed with this, try out applying the solutions discussed in this guide. 

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Errors like this might occur due to a varied reasons. Some of them are – incompatible group policies, corrupted update components, missing, or damaged system files. Let’s explore the solutions in detail –

How to Fix Installation Error 0xCA00A009

Fix Windows 11 Installation Error 0xCA00A009

If you are not able to install or upgrade to Windows 11 from Windows 10, try out these workarounds, and check if any solves the issue that you are dealing with –

1] Troubleshoot Windows update

In case of experiencing any update-related issues, users should try running the Windows update troubleshooter. This is basically an in-built tool that can diagnose the underlying causes and address them. To troubleshoot Windows update, do the following –

  • Press Win + I to launch the Settings app.
  • Click System > Troubleshoot > Other troubleshooters.
  • Once you are there, you may find the Run option besides Windows update.

Windows 11 Update Troubleshooter

  • Click on this button, and the system will force open the troubleshooter.
  • Click Next and follow the on-screen instructions to complete the remaining steps.

2] Reset Windows update components

For a smooth upgrade to Windows 11, all update-related services should be enabled and running on your computer. In case any one of these services is disabled, that will either obstruct upgrading to Windows 11 or even sometimes a fresh installation of the new OS. 

You may open the Services window, and check if the below services are running on your PC –

  • Windows update
  • Cryptographic
  • Background Intelligent and Transfer service

Another thing that may also trigger this error 0xCA00A009 is completely filled Windows Cache folders namely SoftwareDistribution and Catroot2. Purge both these folders and check whether doing so resolves this issue or not. We have written a complete article on how to reset update components, you may follow that as well. 

3] Run SFC and DISM scans

Corruption inside the System Image or system files/folders may also cause different issues on Windows 11 PC including error code 0xCA00A009. There are two separate tools that you may run to fix such issues in one go. Here’s how you can do that – 

  • Right-click anywhere on the desktop screen and select New > Text document.
  • When the notepad comes into the view, copy/paste the below set of commands inside it.

echo off
date /t & time /t
echo Dism /Online /Cleanup-Image /StartComponentCleanup
Dism /Online /Cleanup-Image /StartComponentCleanup
echo ...
date /t & time /t
echo Dism /Online /Cleanup-Image /RestoreHealth
Dism /Online /Cleanup-Image /RestoreHealth
echo ...
date /t & time /t
echo SFC /scannow
SFC /scannow
date /t & time /t

  • Go to File and hit the option – Save As…
  • Type “SFC/DISM.bat” next to “File name“, and use the “Save as type” drop-down menu to select All Files.
  • Hit Save to save this file on the desktop screen.
  • Come to the Desktop screen next, right-click on the newly created batch file, and hit the option – Run as administrator

Let both these scans run automatically. Once these scans are over, make sure to restart your PC. 

I hope the error code 0xCA00A009 resolves automatically from the next logon. In case it doesn’t follow the next set of solutions. 

4] Update Group Policies

If you have recently switched to Windows 11 and are getting this bug, we suggest checking all your group policies for once. This is because these group policies must have been corrupted or outdated in the absence of any recent security updates for Windows. 

gpupdate /force

Have patience as long as the above code runs successfully. When this is over, you may restart your PC.

5] Clean Install Windows 11

If none of the solutions above work in your case, you may download Windows 11 ISO file, and manually install it on your computer. 

I hope this guide helps to fix the error 0xCA00A009 while installing the new OS on your PC. In case you do have any queries or suggestions, let’s know in the comment section. 

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