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What is this Challenge phrase thing (A1B3C3)

Richie Chen 20 Reputation points
2026-05-03T23:57:35.7266667+00:00

Every time I Shut down or restart/update my laptop this A1B2C3 thing appears and its Annoying.

I just wanna use my laptop but THIS Keeps appearing I don't know if I'm being hacked or something else but this is bothering me.

Can somebody help me to disable this feature?

Windows for home | Windows 11 | Security and privacy
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  1. Kayece Jan Mae Amizola 14,340 Reputation points Independent Advisor
    2026-05-04T01:31:56.17+00:00

    Hi,

    Based on your description, you have a security challenge to enter the "A1B2C3" message. This is a security feature in Windows to prevent unauthorized access to your PIN, especially if you repeatedly sign in incorrectly.

    If you could sign in, please try resetting or changing your PIN. Navigate to Settings > Accounts > Sign-in Options and update or remove your Windows Hello PIN. Doing so can help prevent the recurring challenge prompt if the issue stems from a PIN configuration error.

    Please let me know how it goes. I look forward to your response.

    Stay Safe!

    1 person found this answer helpful.

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