On my old PC, I have Windows 8 installed. I've upgraded it to Windows 8.1 and finally to Windows 10. Now, I recently built a new PC but I'm still using the old one too. Now, since I had a Windows 8 license (retail license), can I install Windows 10 on my new PC? Can I go through Windows 8 -> 8.1 -> and 10 again? Thank you so much.