New
#60
Yes, it's free upgrade, meaning if you upgrade from Windows 7 or Windows 8.1 its free. That doesn't mean you have to do an upgrade on the next install on that PC. You can clean install after that if you wish. Thus its a full version.
https://twitter.com/GabeAul/status/605899873360019457, https://twitter.com/GabeAul/status/605900073277325312,
Can I reinstall Windows 10 on my computer after upgrading?
Yes. Once you’ve upgraded to Windows 10 using the free upgrade offer, you will be able to reinstall, including a clean install, on the same device. You won’t need to purchase Windows 10 or go back to your prior version of Windows and upgrade again.
You’ll also be able to create your own installation media like a USB drive or DVD, and use that to upgrade your device or reinstall after you’ve upgraded.
http://www.microsoft.com/en-us/windo...nMore_win10faq