How can I upgrade Windows 8 to Windows 10 for free?

You can upgrade to Windows 10 from Windows 8.1 with a bootable USB or DVD. 

This method is identical to the one above but gives you an installation USB drive as a backup.

1. When running the Media Creation Tool, choose "Create installation media for another PC".

2. Select your language, edition (Windows 10 Home vs. Pro - choose the one that matches your Windows 8 edition), and architecture (64-bit is recommended for most modern PCs).

3. Choose "USB flash drive" (you'll need a blank USB drive with at least 8GB of space) or "ISO file" (to burn a DVD later).

4. Once the USB drive is created, plug it into your PC.

5. Open File Explorer, navigate to the USB drive, and double-click on setup.exe.

6. This will launch the same upgrade process as in Method 1. Choose to "Keep personal files and apps" when prompted.

Now, Windows 8 can be upgraded to Windows 10 and it is free in 2025!