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Windows 11 Keeps Asking for A1B2C3? Fix it in 3 Steps
Delete the contents of Ngc folder to solve the problem
4 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
Several of our readers have been reporting that they need to enter A1B2C3 despite entering the correct pin each time they restart their Windows 11 PC. This weird problem mentions that you have entered the incorrect pin several times, and to try again, you need to enter A1B2C3 in the text box.
If you are looking for ways to bypass this not-so-pleasing A1B2C3Challenge phrasesituation in Windows 11, this guide has got you covered!
How do I stop the challenge phrase A1B2C3 in Windows 11?
1. Remove the Ngc folder contents
Windows stores the login credentials of your PC in the NGC folder which if gets corrupts or has insufficient permissions, problems with the signing process are inevitable.
After you have deleted the Ngc folder, you need to reset the access control lists for it; the method for which is described below.
2. Reset Access Control Lists
The challenge phrase A1B2C3 in Windows 11 usually appears for you to enter if the access control lists (ACLs) for the NGC folder are corrupt. Resetting these lists will easily solve the problem.
After you have performed the above action, you should now proceed to change the Windows Hello PIN of your PC.
3. Create a new login PIN
In case, a glitch with your old PIN or deletion of the sign-in info is causing the a1b2c3 challenge phrase issue in Windows 11, changing the login PIN for the account you use to log into your PC will help you resolve it.
There you go! After performing the above actions in the same sequence as mentioned above, you will no longer be presented with the A1B2C3 challenge phrase.
In case, you areunable to login into your Microsoft accounton your Windows PC, this guide provides effective solutions to help you get around it.
If you need further assistance with your issue, we are just a comment away!
More about the topics:Windows 11,Windows 11 Fix
Taiba Hasan
A postgraduate in Computer Applications, she is an avid technical writer who loves to craft content revolving around Windows, Android, and emerging technologies like SaaS. With How-To and troubleshooting guides, she aims to provide the best solutions for the problem and make technology less complicated for novice users.
Besides writing, she also loves to cook delicacies and spent time in her garden. In her free time, you will find her binge-watching web series or gazing the night sky.
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