Problem Installing Microsoft 365/macOS Tahoe 26.3

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Level 1

4 points

Problem Installing Microsoft 365/macOS Tahoe 26.3

I have a brand new MacBook Air running Tahoe 26.3. When I bought it I purchased a copy of Microsoft 365 from Apple. I'm getting a message that it can't be installed on a MacOS device. What the heck? If that's the case, why did Apple sell it to me? I was running Microsoft 365 on my old PC laptop, but this is a new copy, new product key, my old subscription has expired and I removed my old device from my account (which it found because it's tied to my email address). Maybe I should have set this up under my iCloud email address?

MacBook Air 15″, macOS 26.3

Posted on Feb 28, 2026 1:02 PM

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Answer 1

Feb 28, 2026 1:36 PM in response to Anita-55

Are you following the instructions here:

https://support.microsoft.com/en-us/office/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac-4414eaaf-0478-48be-9c42-23adc4716658

Basically, go here: m365.cloud.microsoft/apps, sign in to your Microsoft account then proceed.

More help here:

Activate Office for Mac

What to try if you can't install or activate Office for Mac

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Answer 2

Anita-55 Author

Level 1

4 points

Feb 28, 2026 2:24 PM in response to neuroanatomist

Well, lo and behold, as I finished typing my question in the forum it occurred to me that there could be a conflict with my prior account. So I started over again with the setup process and created a new account using my iCloud email address. No problems.

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