Chicony Usb Toshiba Chicony USB 2.0 Webcam Repetedly Fails To Install !?

Toshiba Chicony USB 2.0 Webcam repetedly fails to install !? - chicony usb

Reboot my laptop Toshiba Equimar then I have a virus on it and put Vista Home Premium with new drivers ...
Later, when I tried to use my webcam in the construction, he said something like "open webcam failure. Restart the computer,''what I did, but the work is not yet available.
So I decided to install the webcam driver on the Toshiba website and looked like it worked, until she had completed most of the measures and said he had "failed to install"

Who knows how my webcam to work again please?
Thank you:)