Message says "The Microsoft account doesn't exist. Enter a different account or get a new one."

So I went through the motions with Microsoft Support

In my case I was trying to get the user to log into their PC using their Microsoft account and not a local account.

The situation was actually very simple. You simply choose other user and enter the person's Microsoft 365 credentials directly on the login screen!
This worked first time

Next step is to then create another local account
Log in with that one
Then do a profile move

To move the user settings and file from one account to another;

1. Go to Control panel> System> Advanced system settings. Click on the Settings button under user profiles
2. Select the user account from which you want to copy the settings
3. Click Copy to, and then enter the name of, or browse to, the profile you want to overwrite. This will usually be in C:\Users\username, where username is the name of the profile to which you are copying.
4. Click Permitted to use, and then add all user accounts to which you want to give full profile control.
5. Click OK.

I haven't done the profile move yet but I know it does work from past experience.

Not sure why you can't just add the account. I was informed by Microsoft to confirm if the machine was AzureAD joined but I think that's a different scenario.

Hopefully this solves the issue for others!

Like others have said do not use internet when setting up the computer initially. If you already connected try turning off your wireless router or force restart the PC by holding down the power button.

I believe the issue here is that you're trying to sign in with a work (not personal) Microsoft account. Before you can sign into a device using a work Microsoft account, you first have to join the computer to the Azure Active Directory. Settings -> Accounts -> Access Work or School -> Connect -> (on the bottom) Join this device to Assure Active Directory, sign in with a Global Admin account. Now you can sign in with a work MS account!

After having a Conversation with Microsoft it worked for 2Hours again and after the Next Day never since.

The weird thing is all other 365 Apps and the Account including the Windows License are working except Outlook.

So i canceled the 365 Abo Today as i can use another E-Mail Client for this and use Open Office instead for free.

On Mac there is no Problem with that in Outlook but i am p o. anyway. After having this Setup working for Years it just stopped Working. Get yourself together Microsoft.

It is true: Microsoft is a Time Killer, i am switching to Mac completely.

Bye

Guess what ;-)

After getting through the Options i walked over the Options Privacy in the General Options and deactivated Connected Experience witch is in General a logging function as it Reads all your Text and send it to MS ?

After deactivating that Option without knowing it´s existence i got rid of that annoying behavior.

So Microsoft is logging your E-Mail Messages by default without mentioning it and to make it worth, then f up their own Program with this?

DA BS

I have the same problem. I used to be able to create an account in the organization's Office365 Admin page for a user and then immediately login into a new PC that I'm preparing for that user and configure it. As Windows says during config 'One account for everything'... That is no longer true, I have to jump trough hoops and create a 'personal' account meaning that I'm acting in the name of the user which I really don't like but it was totally fine for a professional account.

I can also use a dummy Microsoft account to initialize the PC and then create a local account afterward to eliminate the dummy account and end up with no Microsoft account for the PC.

It also used to be possible not to connect to the internet and directly create a local account but that doesn't seem possible anymore, at least in Windows 11.