did work
then not now w10
device manager must show it and ALL USB ports good too.
w10 newer versions sets mute on mics defaults and camera dead for security, so turn it on.
so be internet connected first, are you so PNP can run? plug and pray???????
right click dead cam, or set DM to view hidden device, shows older devices used before even all USB things.
so see cam now and click on it and update driver?
or go to hp.com goto your support page, exact model or use service tag to do that correctly
then get all missing driver from there, w10 -64bit.
NO warranty answers by me.