Hi, I am Dave, I will help you with this.
The webcam drivers used for the Photos app are different from the drivers for the Infrared functionality required for Windows Hello, below is the support page for your PC on the HP website, from the Driver-Enabling section, donwlaod and re-install the version of IR webcam drivers they provide.
https://support.hp.com/ie-en/drivers/hp-pavilio...
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