Your computer can operate without it's video driver. The downside is that you'll have a resolution of 640x480 and 16 colors. Many programs won't even run if the color depth is lower than 16 bit (65,000 colors). No photos, grainy graphics that look like children's finger-painting at best and huge characters on the screen is just a partial list of problems of running without a video driver. The video driver isn't the place to go when cleaning up a computer.