My Vaio latop is pre-installed Windows 8.1 Single Language (Korean). I would like to clean install Windows 10 single language (US English). Is the OEM Key of 8.1 Korean valid for Windows 10 US English?
99% yes My laptop came with 8.1 bing edition. Win10 th2 automatically picked the key from bios, after install just connect to internet and it will activate. No need to use upgrade path.
The keys are not language specific but you're limited to "Single Language". The 1 exception is "Home China".