This post features solutions to fix Code 42, Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system ...

GPU work in particular is coming along, with a "prototype driver" that is "good enough to run real graphics applications and benchmarks" already up and running, though it's not included in this ...

Even if the NVIDIA Web Helper Service has stopped working ... Some background services and processes keep running when you close an app by clicking the close button. Using the Task Manager ...