The first and most crucial revelation for any M100 owner in 2021 was this:
If your mouse isn't responding, ensure it is plugged into a USB 2.0 or 3.0 port directly rather than a hub. You can find official support documentation at: HP M100 Black Gaming Mouse - Setup and User Guides
For Windows 12 (if released), HP recommends using the generic mouse class driver, but you will lose RGB and macro functions.
. The RGB tail lighting often flashes to indicate a successful mode change. Generic Software Alternative:
Yes, with caveats. The 2021 driver package is digitally signed and works on Windows 10 LTSC, Windows 11 21H2, and most Windows 11 22H2 builds. However, Windows 11 24H2 and later may flag the driver as “unsigned” due to updated kernel security policies. In that case:
For the diligent user in 2021, obtaining the correct driver involved a methodical approach. First, one had to navigate to the official HP Support website (support.hp.com). Entering “M100” often yielded no results because HP’s search algorithm prioritized model numbers exactly as registered—usually “HP Gaming Mouse M100” or a part number like “2Z7A6AA.” The wiser path was to use the automatic detection tool, “HP Support Assistant,” which could identify connected peripherals. However, this tool was notorious for bloatware and background resource usage, leading many gamers to avoid it.
: The mouse is designed to work immediately upon being plugged into a USB port without the need for manual software installation.