Simply connect the USB-A cable to your computer. The operating system will automatically install a generic HID-compliant mouse driver. On-the-Fly DPI Switching:

The HP Gaming Mouse M100 is a plug-and-play device, meaning it does not require a dedicated driver or custom software to function. While many users look for a "2021 driver download," the mouse is designed to work instantly upon being plugged into a USB port on Windows, macOS, or Linux systems. HP Support Community HP M100 Setup Guide

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:

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