Hi Santanu, Thank you for posting the query on Microsoft Community. I am glad to assist you on this.

• Digitalpersona Sdk Free Download

Digitalpersona Sdk Free Download

Windows Hello is biometric authentication that provides you instant access to your Windows 10 devices. I would suggest you to update the latest required drivers from the manufacturer website and check if it helps. If doesn't help install the driver in a compatibility mode and check.

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Download the latest driver from the manufacturer’s website. Right-click on the setup file and click on ‘ properties’. Click on the ‘ compatibility’ tab and check the box ‘ Run this program in compatibility mode for’ and select Windows 8/8.1 operating system from the drop down menu and proceed with the installation.

Once this is done, restart the computer and check if the issue persists. If your computer has an Intel Real Sense 3D camera you will be able to take advantage of Windows Hello once you’ve upgraded to Windows 10. Visit this page to get a full list of Windows 10 devices that will support Windows Hello at launch. Additional devices that take advantage of the Windows Hello feature will hit the market in the coming months. Windows Hello requires specialized hardware, including fingerprint reader, illuminated IR sensor or other biometric sensors. For reference: Say “Hello” to Windows Hello on Windows 10 I hope this information helps.