Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear @M.J,
Thank you for reaching out to the Microsoft Q&A forum. I’m happy to assist.
When you selected “Allow this organization to manage my device”, your device was enrolled in your school’s device management policies (commonly Microsoft Intune / Mobile Device Management). As a result, certain security rules (such as mandatory password changes) are enforced by the organization, even if the school account is no longer visible under your regular user profile.
Could you please confirm whether you can go to Settings > Accounts > Access work or school?
If so, select the dropdown next to your school account and choose Disconnect.
Next, please clear any saved credentials related to your school account by going to Credential Manager > Windows Credentials, and remove all entries associated with your school account.
After that, reinstall Microsoft Office, restart your device, and then try signing in again. During the sign‑in process, please make sure not to select the option “Allow this organization to manage my device.”
Since I do not have access to your device environment, there may be cases where my recommended solutions do not fully resolve the issue or other problems appear. If that happens, please update me right away with any new details or results in the Comment. I will do my best to support you and help find a solution as quickly as possible.