Get Windows 11 Key 32/64 Bit Email Delivery. This key will activate Windows 11 Pro on one PC. This key will activate Windows 11 Pro on one PC and will work on fresh or existing installations of Windows 10 Pro also. 1 User / PC (Lifetime Retail Key). Note : First check weather your pc supports windows 11 or not and then only purchase this product. we are not responsible for any compatibility issue. If you are unsure whether your PC support windows 11 or not then you can check if your device is already running Windows 10, you can use the PC Health Check app to assess compatibility.