Hello DEAN,
Since you want to return to passwords, you do not need to keep recreating the passkey.
- Open Settings > Accounts > Passkeys and delete the saved passkeys you no longer want.
- Open Passkeys > Advanced options and turn off Save passkeys to this Windows device if that option is shown.
- For the Microsoft account used with Outlook, open Microsoft account > Security > Manage how I sign in, then remove its passkey there as well.
- If Microsoft Password Manager or another credential manager is listed under Advanced options, check it for another saved copy.
Deleting only the Outlook passkey may not remove copies stored elsewhere. When Outlook presents the passkey prompt, select Sign-in options or Sign in another way, then choose Password.
Also, changing or resetting the Windows Hello PIN or fingerprint can make an existing passkey unusable, which may explain why these methods have been failing together.
Before removing anything, make sure the password and at least one account recovery method still work.
If the answer is helpful, please click "Yes". If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.