Q: Can I use the same product key on multiple devices? A: No, you can only use the product key on one device.
To resolve Microsoft Office 15 product key activation issues, follow these step-by-step guides: microsoft office 15 product key activation upd free fix
Q: How do I know if my Office 15 is activated? A: Open any Office 15 application, click on > Account , and check if it says Activated . Q: Can I use the same product key on multiple devices