You’re about to get even more out of Office 365
We’re making an update to your subscription so you can use Office on all your devices.
With your current Office 365 Personal subscription, you can use Office on one PC or Mac and one tablet. Starting October 2, 2018, you’ll be able to install it on all your devices and sign in to five at the same time―that means you can use Office no matter where you are or what device you’re on.
I got this information in my email today thank you Microsoft I used to only be able to install on one computer this is great news.