If you own Acer all in one PC Veriton Z2640G series, you may need this driver. This is the Intel VGA driver for Acer Veriton Z2640G All in One PC series. I just perform a fresh install Windows 7 64 bit on this Veriton Z2640G. Unfortunately the VGA driver is not available on default Windows installation. So I need to download the driver from the official website.
To install the driver, extract the file you have downloaded and run the Setup file inside the extracted directory. Follow on screen installation wizard shown until it finished. Reboot your computer upon completion.