installing office 365 troubleshooting

You've not told us the OS version. That's important to getting help from people who can neither see nor touch your computer.

As MS Office is not an Apple product and there are not as many Office users active here as one would think, I believe you will be served faster by asking in Microsoft's Office forums. MS Office questions posted in these forums tend to linger a long time before getting any kind of helpful response.

MS made their forums less user-friendly than before by making it harder to limit answers to Mac subjects, but it can be done when you know the trick, Start here: Results in Office - Microsoft Community to get this header at the top of the page:

1) Use the “Office Topic” pull-down to select your Office app.

2) Limit answers to Mac topics with the “Office Sub-topic” pull-down.

3) If needed, use the “Show Filters” option to further narrow the results.

Everyone there is both and Office user and a Mac user, something you can't say about Apple's forums. I believe you will find the contributors there knowledgeable and very helpful.

Be sure to give them equipment and OS details. Forum people guessing seldom leads to a satisfactory outcome.

I didn’t have a problem installing Office 365. I’ve done it both as a guest of a Microsoft employee, but after that license expired I got access via a purchase of a one year license.

It is kind of buggy though. Word always complains about saving some template. It takes a few tries to get it to quit by cancelling a request to save a template.