To Valued Customers:

Thank you for your support of our fingerprint login product! We are writing to inform you about the product's compatibility with Windows Hello Enhanced Sign-in Security (ESS):

On February 10, 2026, Microsoft rolled out the ESS feature for external fingerprint devices to Windows 11 24H2/25H2 via update KB5077181. As this feature involves new security protocols and interface specifications, our fingerprint login product requires targeted technical upgrades and compatibility adaptation. Currently, the product does not support Windows Hello Enhanced Sign-in Security (ESS) temporarily. If you have upgraded to the aforementioned Windows 11 versions and enabled the ESS feature, it may cause our fingerprint login product to malfunction.

1．Current Normal Usage Guidelines

To ensure your seamless experience, we recommend temporarily disabling the ESS feature by following these steps:

a. Open Windows Settings and navigate to Accounts;

b. Select Sign-in options on the Accounts page;

c. Scroll down to the Additional settings section and locate Enhanced sign-in security;

d. Toggle off the switch next to this feature and restart your device. You can then use our fingerprint login product as usual.

As shown in the figure below:

2．Future Upgrade Plan

Our technical team has initiated the adaptation and development work for the ESS feature. We will complete the product upgrade and iteration as soon as possible, and will notify you via official website announcements, product update notifications and other channels promptly upon completion.

If you have any questions during the operation, please contact us via email:

support@ab2cd.com

We sincerely apologize for any inconvenience caused. Thank you again for your understanding and support!