What are you seeing in Device Manager?
Right-click on the driver installer executable and select "Run as administrator." This gives the installer the elevated privileges it needs to write files to protected system directories. If you are still having issues, temporarily disable your antivirus software, as it may be interfering with the installation. ldc101 usb to civ driver updated
| | Likely Cause | Solution | | :--- | :--- | :--- | | Error Code 10 | Counterfeit PL2303 chip | Use older v3.3.11.120 driver (unreliable) or buy a genuine USB-CIV adapter based on FT232R. | | COM port appears but no radio control | Wrong baud rate or CIV address | Check radio menu. Set software baud to match radio (e.g., IC-7300 = 115200 baud). | | Works for 5 minutes, then freezes | Driver power management | In Device Manager > Properties of COM port > Power Management > Uncheck "Allow computer to turn off this device." | | Driver installs but no port in Device Manager | Windows 11 security blocking unsigned drivers | Reboot into "Disable Driver Signature Enforcement" (Shift + Restart > Troubleshoot > Advanced > Startup Settings). | What are you seeing in Device Manager
