Check the chip on your board. Look for a small square IC. If it says CH340G , you need CH340 drivers instead. If it says FT232RL , use FTDI VCP drivers.
Run the .exe file and follow the GUI prompts. The installer will pre-install the driver files into the Windows driver store. Cdm20830 -setup.exe Download
The file is rare, so SmartScreen doesn't recognize it. Fix: Check the chip on your board
If the driver fails to install or the device isn't recognized, consider these common fixes: If it says FT232RL , use FTDI VCP drivers
– After 30-60 seconds, click "Finish". It is recommended to restart your PC, though not always mandatory.
Clean Uninstall: If a newer driver is already present and causing issues, go to Device Manager, uninstall the current device, check "Delete the driver software for this device," and then run the 2.08.30 installer again.