Part 1: Turn on/off the hardware acceleration option

In the main interface, click the Gear button, then click the Conversion button in the option interface, then check or uncheck the box of "Enable GPU Acceleration" to turn it on or off.

DVD Ripper

DVD Video Converter

Part 2: How to know whether my computer supports hardware acceleration?

Currently, hardware acceleration is available for computers with a certain Nvidia graphics card or an Intel CPU. Please make sure you have the latest graphics card drivers installed to avoid issues.

To check if your graphics card supports hardware acceleration or what kind of hardware acceleration it supports, please see the picutre below or visit: https://developer.nvidia.com/video-encode-and-decode-gpu-support-matrix-new

Full list of NVENC Encoder

To check if your CPU supports hardware acceleration or what kind of hardware acceleration it supports and more information, please see the picutre below or visit the related articles below.

Full list of NVENC Encoder