Have an HP Probook 4520s. Need to purchase an extra adapter. My model isn't listed in the HP chart. What do I buy?

Try www.webcamtoy.com - I use this to test if a webcam is working or not.

If not you need to find a driver. http://h20566.www2.hp.com/portal/site/hpsc/public/psi/swdHome/?lang=en&cc=us&sp4ts.oid=4145326
Choose the correct operating system

If not your webcam may need repairing, or buy a USB webcam (could be cheaper)

Your audio software and drivers may be found on the HP website, under the heading support/driver downloads.

Search your model, find software under audio heading.

Take care!
damnor01

uninstall the program completely and then reinstall the software...

For instructions on how to remove the hard drive, download the service manual from this WEB site. You will find the details on pages 87 - 88.
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c02439213/c02439213.pdf

Not a valid question. Please remove.

Most times HP wireless light is orange when it is either turned off or is not having drivers installed

From the information described, it seems that this is a battery issue. I would suggest replacing the battery as this should resolve the issue.

Best regards, i can say that it really problem, that problem with 64 bit, driver problems will be all time with printers, scaners, webcams, and other. I think will be better, if you reinstall windows 7 32 bit, for work without probles.

mine 4520s is core i5. it also gets hot just below the touch pad but the upper surface remains cool. i think this problem is with all the probook's series. better learn to live with it