Windows Hello Does Not Function on the XPS 9640

Summary: Information about the absence of the Windows Hello feature or the infrared camera following a driver update.

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Symptoms

The Windows Hello feature may become non-operational following a driver update. When attempting to use the login feature, Windows Hello attempts to activate, but the infrared cameras may stay off. This results in a notification indicating an error after a period or time.

Affected System:

  • XPS 9640

Cause

This happens because the infrared driver is absent from the driver package.

Resolution

Camera Driver

To fix this issue, install the most recent camera driver that is available on the Dell Drivers & Downloads site.

Note: In the Category drop down, select camera to find the needed driver.

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Additional Information

Driver version 74.26100.13.2 resolves the issue and is anticipated with a release date of July 08,2025 (can be subject to change).

Affected Products

XPS 16 9640
Article Properties
Article Number: 000330622
Article Type: Solution
Last Modified: 15 Sept 2025
Version:  2
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