How to Fix Windows A1B2C3 Challenge Phrase
Microsoft has recently introduced a new security feature in Windows 10 and 11 to combat brute-force login attempts. This feature displays the A1B2C3 error and asks users to enter a challenge phrase, which is literally “A1B2C3.” However, some users are encountering the A1B2C3 challenge phrase even after entering the correct PIN. In this article, we…
