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I am using a Deek-Robot USBTinyISP to talk to an ATMega32u4 using avrdude. When I plug the programmer into my Arch Linux box, it works immediately with no drama, but Windows refuses to talk to the chip:

$ avrdude -c usbtiny -p atmega32u4


avrdude.exe: error: usbtiny_transmit:
avrdude.exe: initialization failed, rc=-1
             Double check connections and try again, or use -F to override
             this check.


avrdude.exe: error: usbtiny_transmit:

avrdude.exe done.  Thank you.

avrdude -v returns:

$ avrdude -v

avrdude.exe: Version 6.3, compiled on Jan 30 2018 at 08:18:54
             Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
             Copyright (c) 2007-2014 Joerg Wunsch

             System wide configuration file is "E:\msys64\mingw64\bin\avrdude.conf"

I have checked and my Arch Linux machine is also using avrdude 6.3.

Device Manager reports the following:

device manager showing adafruit driver

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