How to fix Error when signing into Microsoft account on Windows PC.

Question

I am trying to login into my windows account on my desktop, on Word, and trying to sign into Onedrive. On the login page it keeps prompting a USB passkey (which I don't have, only a PIN), and when I choose to "sign in another way" with my password, it gives me an error message once I enter my password. Here is the code it tells me to provide Microsoft administrator:
Correlation Id: 4db868da-70e8-404b-b81a-754f8e20246f

Timestamp: 2026-08-01T01:19:01.000Z

DPTI: 3029409fd0349ad8aba6bbf57e05f4b2ba9ba10f63e5bef79a5a331b89113654

Message: An unexpected error occurred.

Tag: 7q6ca

Code: 2147483661

Answer 1

Hi,

Press Windows+R keys on the keyboard, or Right-click Start on the Taskbar and choose Run.

Paste this:

%localappdata%/Microsoft/OneAuth %localappdata%/Microsoft/IdentityCache

Press Enter.

Empty its contents i.e. delete everything inside.

Try signing in again - if it doesn't help let me know if there is a work account configured on the device.

I look forward to hearing from you to get the results of the troubleshooting.