Genuine Windows 100% guarantees you stable performance and a full, unrestricted user experience Permanent activation gives you all the benefits of Windows and official updates A single activation key dedicated to your device for optimal performance. Seamlessly compatible with PCs and laptops. Continuous security updates directly from Microsoft. Instant activation without complexity or lengthy steps. No reinstallation needed upon activation. Post-purchase details Open device settings, then System, then Activation And copy the key and paste it there