Hello YuhanLK,
Good to see you in Microsoft Community.
How did you get the Windows 10 ISO image? Because according to your error message, it may be caused by image corruption.
I suggest you use MCT (Media Creation Tool) to create a USB boot disk or download the ISO file, then boot from the boot disk, and then execute the installer. Because of the large differences between Windows 10 and Windows 8.1, unexpected errors may occur during the upgrade process.
Step-by-step steps to make a boot disk in MCT
- Back up your data.
- Prepare a flash driver with at least 8GB (Pay attention to backup data, because creating a boot disk will erase all data of the flash driver).
- Visit Download Windows 10 (microsoft.com) **** and click "Download Now" to download MCT.
- Run the MCT, select "Create installation media (USB flash drive, DVD or ISO file) for another PC”, and then choose Language, Version, Architecture (if you are not sure about these, choose "Use the recommended options for this PC"), then select "USB flash drive" in the "Select Media to Use" interface, then make a boot disk.
- Boot from the USB flash drive after completion, and execute the installation program.
And you can access **** How to: Perform a Clean Install or Reinstall of Windows 10 - Microsoft Community **** for specific installation steps.
If anything is unclear, please do not hesitate to let me know.
Best Regards,
Mosken_L - MSFT | Microsoft Community Support Specialist