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

The error code 0x8007025D, accompanied by the message The installation was canceled, appears when users attempt to perform a clean installation of their Windows operating system. This issue primarily arises when users try to install Windows from a USB flash drive.

In this guide, we will look into the troubleshooting methods that have helped other users resolve this issue.

1. Unplug the External Devices

Start by disconnecting any non-essential external devices since the issue may be due to faulty hardware or corrupt drivers.

Moreover, once the files are copied to your computer, the USB drive may not be needed for the installation to proceed. Try disconnecting the drive to see if the installation continues correctly. Also, consider switching to a different USB port to determine if that resolves the issue. If external devices are not to blame, proceed to the next solution.

2. Reduce the HDD or SSD Disk Space and Format It

For installing Windows from a USB drive, approximately 20GB of space is required.

Therefore, reducing the size of the installation partition to 125GB might mitigate the risk of corruption and resolve the 0x8007025D error. This option is not available for existing installations being upgraded to a new feature build.

1. Turn your computer off, wait a few seconds, and then power it on again.
2. Before Windows loads, use the power button to shut down the PC again.
3. Perform this action twice, and Windows will open the Recovery menu on the next startup.
4. Select Troubleshoot from the list of available options.

   

5. Go to Advanced options > UEFI Firmware Settings and select Restart.

   

6. In BIOS, navigate to System Configuration or the Boot tab.
7. Select Boot Options from the available choices.
8. Switch to the Legacy support option and enable it.

   

9. Confirm by clicking Yes.
10. Exit the BIOS following the on-screen instructions.
11. The Boot Manager window should now be visible.

    

12. Choose the USB hard drive (UEFI) option from the list.
13. Select the version of your operating system and wait for the files to load.
14. In the Windows Setup dialog, click on the custom option.
15. Select the partition and click New.
16. Click Apply.
17. Next, format the new and primary partitions by selecting the Format option.
18. Proceed with the installation by clicking Next. With any luck, the error will no longer occur.

3. Use Another USB

It’s possible that your current USB drive, even if the downloaded image is intact, has read errors due to bad sectors. Windows installation issues can arise when it’s unable to read these parts of the Windows image, resulting in error code 0x8007025D.

Should the previous options fail, consider the possibility of a faulty USB stick. To circumvent this, utilize another USB stick to create the bootable Windows 10 installation media, which you can acquire from the official Windows 10 download page. Attempt the installation once more to check if the error persists.

For optimal results, create the bootable USB media on a separate computer before using it on your own.

4. Download a New Windows 10 ISO Image File

If your downloaded image file includes a corrupted file that cannot be decoded or copied, this may also lead to the error. The same applies to files whose location on the USB drive or disk is unrecognized during image creation.

In such instances, it’s advisable to download the files again from the official Microsoft page for Windows and start the installation process anew. To see if this resolves the problem, try deselecting the ‘Recommended Windows settings’ during the setup.

5. Run a Memory Diagnostic

For some users, removing RAM sticks has eliminated the 0x8007025D error. If your PC has multiple memory sticks, you can try this method as well. Remove one stick and initiate the installation. If the error continues, switch the first stick with the second and retry.

1. Access BIOS using the aforementioned steps.
2. Navigate to Diagnostics using the right and left arrow keys.
3. Select the Memory Test, press Enter, and check for any errors in your RAM. Address them using appropriate troubleshooting methods.