However, be sure it's really a Full version and not an OEM
version, which many people confuse with the Full version. An OEM
version will not do upgrades, only clean installations.
If it is a proper Retail version, then yes. But not is it is one of the
'OEM' ones, sold with a bit of hardware, and probably marked 'for
supply only with a new computer' or similar wording: those will only
install clean