• CODES ARE ALWAYS IN STOCK, INSTANT DELIVERY AFTER PAYMENT
• FULL, OFFICIAL LEGITIMATE SERIAL CODE TO ACTIVATE WINDOWS 8.1 PROFESSIONAL
• DOWNLOAD DIRECTLY FROM MICROSOFT
• ALL LANGUAGES SUPPORTED

We have two versions available – retail version that comes directly from Microsoft with all features unlocked and the OEM version which is the version provided by large PC manufacturers on devices they sell. The OEM is limited – it permanently binds to one PC on first activation, it does not come with Microsofts free phone support and you can’t use it to upgrade from Windows 7 or 8.1 – only fresh install. The retail version does not come with those 3 restrictions but other than this it’s exactly the same product.