Windows 10 failed to install error Code 80240020

If you are trying to upgrade your Windows 7 or 8.1 to Windows 10 and you are encountering the error code 80240020, then you are not alone. This error code usually occurs when the Windows 10 upgrade process fails to download the necessary files from the Microsoft servers. This can be due to various reasons such as network issues, corrupted files, or insufficient disk space.

Here are some solutions that you can try to fix the error code 80240020:

1. Check your internet connection: Make sure that your internet connection is stable and fast enough to download the necessary files. You can try resetting your modem or router to fix any network issues.

2. Disable your antivirus software: Sometimes, antivirus software can interfere with the Windows 10 upgrade process. Try disabling your antivirus software temporarily and then try to upgrade again.

3. Delete the Windows update cache: The Windows update cache can sometimes get corrupted and cause issues with the upgrade process. You can try deleting the cache by following these steps:

– Press Windows key + R to open the Run dialog box.
– Type “services.msc” and press Enter.
– Scroll down and find the “Windows Update” service.
– Right-click on it and select “Stop”.
– Go to the following folder: C:WindowsSoftwareDistributionDownload
– Delete all the files and folders in this folder.
– Go back to the “Windows Update” service and right-click on it again.
– Select “Start” to restart the service.

4. Free up disk space: Make sure that you have enough free disk space to download and install Windows 10. You can try deleting unnecessary files or programs to free up space.

5. Use the Media Creation Tool: If all else fails, you can try using the Media Creation Tool to upgrade to Windows 10. This tool allows you to create a bootable USB drive or DVD that you can use to upgrade your system.

In conclusion, the error code 80240020 can be frustrating, but there are several solutions that you can try to fix it. If none of the above solutions work, you can try contacting Microsoft support for further assistance.


I hope that the solutions provided were helpful in resolving the error code 80240020. Remember to check your internet connection, disable antivirus software, delete the Windows update cache, free up disk space, and use the Media Creation Tool if necessary. If you continue to encounter issues, don’t hesitate to reach out to Microsoft support for further assistance. Good luck with your Windows 10 upgrade!

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