: For organizations, Microsoft provides Generic Volume License Keys (GVLKs) that allow systems to connect to a local KMS host for activation.
: If Windows was preinstalled, the key is usually on a sticker on the device or embedded in the BIOS. : For organizations
These keys are intended for volume licensing and require a KMS host on your network to function: Windows Edition Generic KMS Client Key MHF9N-XY6XB-WVXMC-BTDCT-MKKG7 Windows 8.1 Pro GCRJD-8NW9H-F2CDX-CCM8D-9D6T9 Windows 8 Enterprise 32JNW-9KQ84-P47T8-D8GGY-CW9R3 Windows 8 Pro NG4HW-VH26C-733KW-K6F98-J8CK4 How to Use a Product Key To enter a key manually: Open an Administrative Command Prompt . Type slmgr /ipk and press Enter . To trigger activation, type slmgr /ato and press Enter . Important Security Note Windows 8.1 Activation : For organizations