Old accounts remain on Teams sign-in screen after resetting details

Remove the unwanted identities from Windows 11 Settings → Accounts → Email & accounts, because Teams can obtain accounts shared by Windows even after Teams itself has been reset or signed out.

Remove the personal-account entries

1. Close Teams completely:
   • Right-click the Teams icon in the notification area.
   • Select Quit.
2. Open Start → Settings → Accounts → Email & accounts.
3. Check both account sections, especially Accounts used by other apps.
4. Expand each unwanted personal account and select Remove.
5. Leave the personal account you still use untouched.
6. Restart Teams and check the account picker.

Microsoft documents removing personal accounts through Windows account settings because Windows shares accounts with apps such as Teams.^1^

This removes the account from the device; it does not close or delete the underlying Microsoft account.

Check whether an entry is a Windows user

If an unwanted account is not under Email & accounts:

1. Open Settings → Accounts → Other users.
2. Expand the unwanted account.
3. Select Remove beside Account and data.

Caution: This option removes that Windows user’s locally stored data from the PC. Use it only when the entry is genuinely an obsolete Windows user, not merely an account used by apps. Removing the user from the device does not delete their Microsoft account.^2^

Since Access work or school is already empty, there is no reason to repeat that check.

If the former employer is an organization under your personal account

If Teams lists the employer beneath your current personal account as an organization, rather than as a separate sign-in identity:

1. Open Teams and sign in with the relevant personal account.
2. Go to Settings → Accounts and orgs.
3. Select Leave next to the former employer.
4. Complete the confirmation in the browser.
5. Allow several hours for the change to propagate, then sign out and back in.

Microsoft notes that organization removal can take a few hours to appear in Teams.^3^

Conditional fallback: clear shared identity caches

Use this only if the unwanted entries remain after they have been removed from Windows account settings. It clears shared Microsoft sign-in caches, so Teams, OneDrive, Office, and other Microsoft apps may require sign-in again.

1. Quit Teams, OneDrive, and Office applications.
2. Press Win+R and open each location separately:
   • %LOCALAPPDATA%\Microsoft\OneAuth
   • %LOCALAPPDATA%\Microsoft\IdentityCache
3. Rename the folders—for example, to OneAuth.old and IdentityCache.old—rather than immediately deleting them.
4. Restart Windows.
5. Open Teams and sign in only with the personal account you want to retain.
6. After confirming everything works, delete the renamed folders.

Microsoft documents these folders as locations containing cached Microsoft credentials when identities remain cached.^4^ That article addresses OneDrive authentication rather than this exact Teams account-picker symptom, so cache removal is a fallback—not the first action.

Avoid deleting the Office Identity registry key for this case. The documented registry procedure applies to specific OneDrive authentication errors and would remove all cached Office identities rather than just the unwanted Teams entries.

References

1. [Desktop](https://support.microsoft.com/teams/troubleshooting/sign-out-or-remove-an-account-from-microsoft-teams#remove-an-account-from-windows)
2. Manage User Accounts in Windows | Microsoft Support
3. Leave a work or school organization in Microsoft Teams for personal use | Microsoft Support
4. Error 0x8004dec5 when signing in to OneDrive