I have an Arduino Micro.. I have Windows 7
When i first plug in the USB, in Device manager, "Arduino Micro" comes up in the "Other Devices" tab. It quickly changes its name to "USB IO Board" Under properties, the "update driver" is greyed out for a bit until Windows finishes looking for a driver, regardless if I click "skip" or not. Then when it gives me the chance to select drivers, under C:\Program Files (x86)\Arduino\drivers\ it says Windows could not find driver software.