As long as you're in the institutions system, or they end their contract with Microsoft. My daughter's account ended first week of July, once her school had broken up for the holidays. She'll get it back soon (already?) as she's going to a university who provide O365 to their students.
So how long does it remain free for? I bet there's an expiration date on this..
Discussed already - it depends on the institution. My employer allows 5 WIndows/Macs, 5 phones, and 5 tablets. So 15 devices in total.
Anyone know if a student can download onto more than one pc?
Yes. I don't think access is available on macs