You first have to
1. Connect cam to computer. If Hardware Wizard comes just hit Cancel
2. go to Device Manager and find the entry for cam device. It will probably have a Yellow Question mark for an icon (which is what windows uses for a device if can't find the driver). If is a USB cam, expand the USB devices and look there first else look through all device manager
3. When find the entry, rt click->Properties. Click Details tab. Now you must tell us the device string that appears (or capture the screen shot and attach the .jpg)