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Here's what you need to do to get the Trailshead webcam to work. Refer to the pictures, this is for Windows XP, you need to be signed in under an Administrator account. I will provide a Vista how to later.
After that you should see a popup that gives you an option to "Install" Axis Media Control. You want to click install. It should then work, if not close Internet Explorer and try again. Post any questions here that you have.
After that you should see a popup that gives you an option to "Install" Axis Media Control. You want to click install. It should then work, if not close Internet Explorer and try again. Post any questions here that you have.