What you have is the older version of the Gemma:
https://www.adafruit.com/product/1222Note the deprecation warning at the top of the product page:
Deprecation Warning: The Gemma bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Gemma so that people can maintain some older projects, we no longer recommend it.
And the recommendation to use the newer Gemma M0:
https://www.adafruit.com/product/3501With the Gemma you have, no folder or icon will show up on your PC. Also, Arduino is the only programming option:
https://learn.adafruit.com/introducing- ... rduino-ideIf you were wanting to use CircuitPython, you'll want to get a Gemma M0.