How to Fix Error Code: 0x8007025D When Installing Windows?

The 0x8007025D error with the error code ‘The installation was canceled’ pops up when the users attempt to perform a clean installation of their Windows operating system. The majority of people encountering this error were attempting to perform a clean installation of Windows using their flash drives.

Windows Install Error Code 0x8007025D
Windows Install Error Code 0x8007025D

In this guide, we will explore the troubleshooting methods that worked for other users in resolving the problem. 

1. Unplug the External Devices

The first thing that you should do is unplug the unnecessary external devices, as the issue can be caused due to faulty hardware and corrupt drivers.

Furthermore, after the files are copied to your computer, Windows may no longer require your USB drive. Try unplugging your drive and then check if the installation is working properly. You can also try switching to a different USB port and see if that makes any difference. If the external devices are not the culprit, move to the next method below.

2. Reduce the size of the HDD or SSD disk space and format it

When you install Windows 10 from a USB drive, you will only need around 20GB of space. 

It is therefore possible to resolve the 0x8007025D error by reducing the installation partition’s size to 125GB in order to reduce the chance of the space being corrupted. An existing installation won’t have this option if you’re installing a feature build.

Here is all that you need to do:

  1. Turn your computer off, wait for a few seconds and turn it back on.
  2. Use the power button again to turn off Windows right before it loads.
  3. After you do this twice, Windows will launch the Recovery menu once you turn the computer on.
  4. Choose Troubleshoot from the list of options available.

    Click on the Troubleshoot button
    Click on the Troubleshoot button
  5. Navigate to Advanced options > UEFI Firmware Settings and click Restart.

    Click on the Restart button
    Click on the Restart button
  6. Once you are in the BIOS, head over to the System Configuration or Boot tab.
  7. Choose Boot Options from the list of options available.
  8. In the following window, head over to the Legacy support option and enable it.

    Enable legacy support
    Enable legacy support
  9. Click Yes in the confirmation prompt.
  10. Now, click Exit and follow the on-screen instructions to complete the process.
  11. You should now be able to see the Boot Manager window. 

    Access the Boot Manager
    Access the Boot Manager
  12. Choose the USB hard drive (UEFI) option from the list.
  13. Click on your operating system version and wait for the files to load.
  14. In the following Windows Setup dialog, click on the custom option.
  15. Choose the partition and click on the New button.
  16. Click Apply.
  17. Next, format the new and primary partitions by clicking on the Format button.
  18. Click Next and wait for the installation to complete. Hopefully, you will no longer face the installation error again.

3. Use Another USB

You may find that the image you downloaded is fine, but you are using a bad flash drive. When you repurpose an old USB drive for installation, it might contain sectors that cannot be read by the PC. When Windows fails to read the bad sector of the Windows image, you receive the error code 0x8007025D.

If other options failed, you might want to consider if the USB stick is faulty. So, create bootable Windows 10 installation media from the official Windows 10 download page using another USB stick. Install the upgrade from there and see if the 0x8007025D error persists.

For best results, create bootable USB media on another computer before connecting it to yours.

4. Download a New Windows 10 ISO Image File

Your downloaded image file may have a corrupted file that cannot be decoded or copied. In the case of files downloaded via image creation, their location on the USB drive or disk may be unknown, causing the error.

If this is the case, you should try reinstalling the files again and then begin the Windows installation process. Simply head over to the official Microsoft page for Windows to download the files. Check if it works by unchecking the Recommended Windows settings during installation

5. Run a Memory Diagnostic

It appeared that removing the RAM sticks fixed the 0x8007025D error for many users. If your PC has two memory sticks installed, you can do the same. Take one out and run the installation. Replace the first stick with the second one if the error still occurs.

You can run a memory diagnosis by following these steps:

  1. Boot into BIOS using the steps we described above.
  2. Click Diagnostics using the right and left arrow keys.
  3. Now, choose the Memory Test, and press the enter key to begin. Check if there are any errors in your RAM, and then apply the troubleshooting methods accordingly.

    Scanning using the Windows Memory Diagnostics tool

Zainab Falak

Zainab Falak is a highly educated professional with a background in actuarial science and a strong passion for technology. Her expertise lies in the field of data analytics and she is a proficient programmer in languages such as Python and R. At Appuals, Zainab shares her extensive knowledge of Windows 8, 10, and 11, covering a broad range of topics related to these operating systems. Zainab's ability to effectively communicate technical concepts in a clear and concise manner has earned her recognition and respect in the tech community. She is committed to staying up-to-date with the latest developments in the field and providing readers with insightful and informative content.