We are facing constant problems with the desktop apps in O365, wheter it’s RDS servers that somehow are Azure joined by a user from login 1001 errors to modern authentication Windows that automatically disappear or other generic error 1001 logon bullshit. We have a tome of registry bullshit with shit like EnableADAL to deleting the AAD appx folder from the user profile and/or reinstalling it through Powershell and so it goes on… usually dicking around with these settings will make it magically work for a few weeks…
The amount of time this costs us and our customers is truly staggering, are we the only shop facing this?
I’ve run into a lot of issues stemming from people creating personal Microsoft with the same email as their O365 email(why Microsoft? Fucking why do we even allow this?)
So they’ll mess around and log into their personal on one app and their work email on another, and then everything goes to shit because I guess Microsoft doesn’t quite grasp that having two accounts to very similar systems that have the exact same username is asinine.
Anyway, make sure you remove every account from the system, including removing the device from any azure domain, rejoin, and hand hold users through signing it.
We had this a lot during Covid where people just registered free Teams accounts with their work e-mail adresses. These environments are super small so I will check it out to be sure!
Thanks for taking the time to reply!