This was a head-scratcher for me when I first encountered it some time ago.
The short answer is that simply logging in to your PC isn’t enough after a password change. You probably have to log in to a couple of additional places: OneDrive, Mail, and perhaps other apps as well.
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One account to rule them
Given Microsoft’s near insistence that we use Microsoft accounts to log in to our Windows 10 PCs, it doesn’t seem like much of a stretch that they would use the same account for everything else account-related on your PC.
They do and they don’t.
Apparently, successfully logging in to your PC with your Microsoft account isn’t enough to log in to other applications that also use your Microsoft account.
Log in and then log in again somewhere else
Not long ago, I changed my Microsoft account password. It went relatively smoothly, but I had to re-log-in to all my PCs if I wanted the Microsoft account connection to remain active for things like Windows Updates. That much makes sense.
Then I started getting this “there’s a problem with your Microsoft account” message, just as you have, even though as far as I could tell, there was no problem at all.
The “trick”, in my case, was to remember that there were two other applications I had used — perhaps only briefly — that also were associated with my Microsoft account.
- OneDrive – I rely heavily on OneDrive, and sure enough, it had stopped syncing. I needed to open OneDrive properties and re-authenticate my Microsoft account there.
- Mail – I don’t use the Mail app in Windows 10, but I do have it configured so I can answer questions and test things out. It’s configured to connect with my Hotmail account, which is my Microsoft account. I needed to open account properties and re-authenticate my Microsoft account here as well.
Once I took those two steps (on each of my Windows 10 machines), I stopped getting nagged.
It could be better
I had two simple assumptions:
- My login account — a Microsoft account — would automatically be used for Microsoft-related services on the PC.
- If there was a problem with an app’s ability to use the account, the error would at least tell me which app or apps were involved.
Someday, perhaps one or both of those expectations will be met, but right now they’re not.
The bottom line: if you get a warning about your Microsoft account, be sure to check out any apps that use the same account your PC does. It’s likely the issue is there.