System Information
Operating system: Windows 10 2004
Graphics card: GTX 1060 6GB

Blender Version
Broken: (example: 2.83.0)

Short description of error
This happened to me twice so far. When accidentally decreasing the "Voxel Size" of "Remesh" modifier below 0.01, the OS hangs.

Exact steps for others to reproduce the error
It's not allowed to decrease this property down to zero.

A possible solution could be to have a keyboard key (e.g. ESC) to cancel the current operation. This will be not only useful for this case, but also for all heavy operations. For instance, I increase subdivision step count to a higher value then realize I don't need this, I would like to be able to cancel the computation before it is finished.