Official WCH (Nanjing Qinheng Microelectronics) driver.

Run your programming software as Administrator . Also ensure no other software (like a terminal emulator) has the port open.

If you want, provide the Hardware Ids or a download link you have and I’ll give exact commands/files for installation.

: Choose "Browse my computer for drivers" and navigate to the extracted folder. Even if the folder is labeled for "Windows 7" or "Windows 8," these files generally work for Windows 10.

Out of the box, Windows 10 will tag it with the dreaded yellow exclamation mark in Device Manager, usually labeling it as an "Unknown USB Device." Why? Because the GEV189 typically uses a or Silicon Labs CP210x chipset internally—and Microsoft removed support for older, counterfeit versions of these chips in a major 2016-2018 update.