hi ... I inherited the IT support for a small 6 desktop computer office for an apartment building admin team ... from Belarc Advisor I got the full 20-digit license keys for all 6 computers for MS Off 2021 Prof PLus ... all license keys starting with 00469 indicating MAK licenses ... Belarc also reports that 3 license are activated, showing me the last 5 of the 25 digit of their MAK Product Key ... for the other 3 (computers which were not used for a while), it reports "not activated" ... I don't have any paperwork, emails or other info ... I have been asked to activate the remaining 3 ... I am familiar with the ospp.vbs script to activate but this requires knowing the 25 digits which I currently don't ... I read about accessing admin.microsoft.com but nobody knows what the building corporation's email address is ... elsewhere I read that this is not usable for MSO2021 licenses but only for O365 ... I also read about contacting the local MS helpdesk with a list of requirements (original proof of purchase, admin accounts, etc. which nobody from the admin team is able to provide)

What other options do I have to activate the 3 MSO licenses? I read that I really need the MAK keys, so are there ways to get these?

I’ve had 365 for almost a year and hate it, so I signed out of it months ago and use only the desktop apps. I don’t want to renew 365 (which expires next week), so was going to buy Office 2024. Then I wondered if a new version was coming out soon. I’ve only found vague references about Office 2026 online. Has anyone heard anything about it? I’d like to get as much life out of what I’m going to buy as possible. Before 365, I had Office 2011 on my iMac. The computer was in storage for years and I only used an iPad (long story - lots of chaos in my life!). I now have a MacMini and use Office on a regular basis. Do I suck it up and subscribe for another year and then buy the newest version when it comes out? Help!