So, I’m sure this has been asked before. I’m trying to figure out the search function. So far, the tutorials and articles I’ve found online don’t work.
I’ve downloaded the Arduino IDE and used windows installed to run it. However, when I plug in either my Mega 2560 or Uno, windows throws up an error message and in device manager, under USB devices, says unknown USB Device (Device Descriptor Request Failed). I’ve tried browsing for the drivers and not finding them.
I have a windows 10 computer. The Uno appears to be legit but the Mega 2560 is made by SunFounder.
Any help is greatly appreciated. I’m trying to learn this with my son and we can’t get anywhere.



They appear to be respectable "copies".
Windows 10 can throw up driver related issues.
Usually installing drivers with ADMINISTRATOR privileges will fix most issues.
Also ensure you are using a USB 2.0 port where possible as USB 3.0 can on occasion give its own problems with some hardware.
Bob.
I thought I was the administrator. I’ll double check when I get home and log in appropriately. Do you know the file name for the appropriate driver?
I have checked. I am an admin on this computer. That doesn't appear to be the issue. I am also using a USB 2.0 port. Any other ideas?
Okay, so, I used another computer with Windows 10. Automatically recognized the boards. No issues at all. Not sure why it work on my main laptop.
Most often when there is a discrepancy like that it can often be security features on the computer with the issues such as antivirus or similar.
Quickest way to test is to turn off the security software being used to try and install the IDE and try an upload.
If it helps then its just a matter of adding the software to the security programs exclusions list.
Drivers can also come under scrutiny from windows itself and in those cases turning off driver enforcement will often get over that hurdle.
Bob.