Yup, mine was an upgrade from Win 7.

Whaddaya mean by conventional HDD? I'm on a Lenovo notebook and not on SSD if that's what u mean...

Had wanted to do a clean install but nowadays these notebooks come preinstalled with Windows and they don't give installation discs and drivers,etc... So if I clean install and it couldn't find drivers for the onboard stuff like Intel chipset, LAN/Wifi/bluetooth, graphic card etc, it's gonna be hellish trying to recover everything

And yes, it does take 4-6 hours to update/upgrade just like the screenshot...