The reasons are that the computer does not recognize the camera, there may be several. It may be the camera and the computer, or rather its port, and as a result, the motherboard. Besides, it is necessary to define what is meant by the word "sees". If the device is connected and is defined as a USB device, but the image cannot be displayed, the case in the drivers. Connect any device to USB, go to device Manager, in section universal serial bus Controllers USB" should be added to the storage device. If near one of the points there is a yellow exclamation mark means the drivers are installed correctly and the camera is not displayed on the computer. Therefore, it is better to take the disk that comes with the device, and reinstall the driver.If the camera is connected, the drivers installed and the computer does not see the device, check if this USB port. Take any device that can connect to it and check it out. For example, a flash drive, external hard drive. If the port is working, then you need to check the cable. Take the cord from another device - they are universal and are the adapter between mini-USB to USB and try. If not, then the reason lies in the camera.Most often the damage is subjected to a USB controller - this can occur due to improper connections and disconnections or other reasons. In any case, you can temporarily solve this problem temporarily by using to copy the photos to your computer card reader. Try connecting the cable to a different port (on the rear panel of the system unit).If these actions helped to connect the camera, but the computer does not see pictures, try the following. Call context menu on "My computer", select Properties, go to the tab "Equipment", "device Manager". Locate the camera, click the right mouse button, then select "Properties" and change "Disabled" to "Enabled".