Check in the Device Manager. The so-called driver-free means that the chip comes with its own driver, which can be installed automatically, without manual installation of the driver, not without the driver. Keyboard, mouse, USB flash drive, etc. It's all driver-free, but it takes a while to use it when you plug in the computer for the first time, because the driver is automatically installed at this time. Some computers are very slow, and you can see the installation tips in the lower right corner. So the driver-free download line is also driven, which can be seen in the device manager.

Hope to adopt. . . . . .