The problem I had was that a message appeared saying “acer webcam not found” when trying to load the crystal eye webcam software.
To fix it, first download the latest acer crystal webcam application from the acer support site for your machine. Do not install yet, it wouldn’t let me anyway as it could not find the webcam needed to install.
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Second, open the device manager by going to control panel – device manager, or win7 users can type device manager in to the start menu and it should appear.
Third, the webcam is tied internally to the usb ports. Expand the Universal Serial Bus controller tab and locate the USB Root Hub. There may be more than one. Right click these and disable them. A warning may appear that a restart is required but only restart when you have disabled all the USB Root Hubs in the menu. Unfortunately, this may disable any external usb keyboards and mice so beware.
Acer Webcam Drivers Crystal Eyes
Forth, Restart the machine and go back to the device manager and back to the USB Root Hubs, Right click and enable them. Right click again and this time click scan for hardware changes, just in case.
Acer Webcam Drivers Crystal Eye Care
This process brought back the webcam to the device manager list and I was then able to install the latest version of the Crystal Eye Webcam software and use the camera! It appeared under an Imaging Devices tab further up the list in device manager.
Not sure why this worked for me, im guessing it had the same effect as unplugging and plugging it back in, as if it was an external device.
Not sure as to why it went in the first place, I did install a virtual usb port for a remote office application that could have affected it but im not sure.
Hope this helps. The image below shows the device manager with the webcam and the usb root hubs (when fixed).