GPGPU benchmarks cause video driver to crash!
On modern Windows (10, 11, etc) the video driver is killed and re-started if it does not respond for 2 seconds.
Unfortunately, some GPGPU tasks (kernels) may execute for longer depending on the video card / system - despite Sandra's calibration to ensure they do not take longer.
Sandra increases this time-out to 15 seconds, but you have to reboot for this change to take effect. So please reboot after installing Sandra if the above happens.