Here are DELL OptiPlex 780 Video Controller Drivers for Windows 8 64 bit . Please follow the steps to download and update your computer.
If you can not find a driver for your Windows 8 64 bit system you can ask for the drivers at support#lavinas.com (Note: change # to @).
Step Two: -> Click the "Start Scan" button to find out latest Video Controller drivers for your Windows 8 64 bit
Step Three: -> After the step above, the out-dated Video Controller drivers and other drivers will be found and new drivers will be available for download. Click the "Download" and "Install" to update your OptiPlex 780 Video Controller drivers by the software, shown below.