Windows 10 is the most recent and developing OS, which is why it is surrounded by more bugs & error. The generic PNP monitor driver in Windows 10 is another issue encountered by many users.
Have a look at a user’s experience
I have problems with display drivers. The device manager shows an error ‘Generic PnP Monitor’. I’ve updated graphic drivers to the latest version but now the monitor is no longer recognized and I see a black screen. I reinstalled Windows, reinstalled drivers from the Ndivia website, no avail. This issue showed up after Windows update
The most possible reason for generic PNP monitor issues to appear in Windows 10 is the outdated driver or the insufficient capacity in hardware while upgrading the OS.