Hi Jimmy. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
Yes, it works for any PC's that have a camera or fingerprint reader that qualifies, or if not the PIN is always an option which is said here to be as secure as a password:
https://channel9.msdn.com/Blogs/One-Dev-Minute/...
Here are the camera requirements and some webcams suitable for WIndows Hello Facial Recognition:
https://social.technet.microsoft.com/Forums/en-...
https://docs.microsoft.com/en-us/windows-hardwa...
https://www.windowscentral.com/should-you-buy-w...
https://www.pcworld.com/article/394379/windows-...
Here's how to set it up and troubleshoot:
https://www.cnet.com/tech/computing/how-to-setu...
https://thegeekpage.com/windows-hello-face-is-n...
I hope this helps. Feel free to ask back any questions. Please report back results for all steps given so I know what else to suggest if necessary.
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