Windows

Windows is Microsoft's operating system for desktops and laptops, and it runs on most gaming PCs. You can install and use it without activation, but some personalisation settings are locked and a reminder stays on screen. Activation uses a product key or a digital licence that is tied to the computer's hardware and can be linked to a Microsoft account.

Sellers here offer Windows keys and licences for different editions, software for work and study, and services such as installing or reinstalling the system and help with activation and setup. When buying a key, pay attention to the edition, Home or Pro, the licence type and which version of the system it is meant for. A Pro key will not activate Home without an edition change, and some licence types are meant for a single device and do not move to a new computer. Ask the seller how the key is delivered and what happens if activation fails.

Every deal is protected by the marketplace: the money is held by the site until you activate the system or check the software and confirm receipt. Keys from listings with automatic delivery appear on the deal page right after payment; everything else is sent by the seller in the chat. If activation throws an error, take a screenshot and open a dispute before confirming, and a moderator will look into it. A tip: before paying, open the activation page in the system settings and see which edition of Windows you have installed.