@smarinof I had the same issue as idwilson. I used the CH341 USB to serial port Windows driver in the HW manager to update the unknown device with this driver, and after that I could control (and print from) my Ender 3 Pro with Cura Ultimaker 4.8.0 from Windows 10 64bit. So thanks for your tip.
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RE: Creality Ender-3 Pro FDM 3D Printer Windows 10 USB Serial Driver