A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Hi Kolawole,
First, try signing in to the same Microsoft account in a web browser. If the account works there, the problem is more likely with the Windows sign-in connection on the PC rather than the account itself.
Go to Settings > Accounts > Email & accounts, remove the affected Microsoft account under “Accounts used by other apps,” restart the PC, and then add it again. Also check Settings > Time & language > Date & time and make sure the time is set automatically and synchronized. Similar Windows sign-in errors can occur when the locally cached account connection is no longer syncing correctly.
If it still fails, let us know whether this happens when signing in to Windows itself, Windows Security, or only a particular Microsoft app, as the next troubleshooting steps are different.
Thank you, and feel free to respond back for more assistance.