How to restore missing passkey in Windows 11

[Andreas_17]

I've lost the passkey entries for login.microsoft.com by unknown reason and need help to restore them. Symptom is that the application SystemSettings.exe crashes with error code 0xc0000409 when I open Settings > Accounts > Passkey. All the repair tries using dism and sfc did not help because they could not restore the missing data. Also a repair installation did not recover them. But I'm still able to login using Windows Hello. Is there a way to restore them except the painful way of a clean installation of Windows 11. I've actually running Windows 11 24H2. Thanks and kind regards, And

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