I surfed the Internet about this problem, & it seems others are having the same problem I'm having w/ the web cam w/ the HP ProBook 6555b.
I installed Windows 7 32x because I work for a college, & re image our laptops/PCs w/ the college's customized image; however, for some reason the laptop doesn't Windows doesn't even see the web cam.
I've updated the BIOS to the latest version, but even more puzzling, there is no web cam listed in the BIOS.
This is going on w/ more than 1 6555b, which leads me to think this isn't a problem w/ the particular laptop I've been working w/; instead all 6555bs seem to have problems; at least when you reimage a 6555b. I can see the 6555b has a webcam on top of the laptop.
I think the web cam is a realtek but not sure what model camera it is. The realtek driver you download from 6555b support page seems to install fine, & the install seems to go through successfully, but there's still no camera. You try to install the web cam software, & says no web cam found or something along those lines.
My thought if the camera isn't listed in the BIOS there is no web cam w/ this particular model 6555b.
Thanks for any ideas or suggestions