I have just purchased an Arduino starter kit from Maplin (the board is a UNO) and appear to have fallen at the first hurdle. I am using Windows 10 and have downloaded the Arduino software although the instructions given by Maplin were of no use as they were for Windows XP, Vista or 7. As far as I can tell, the software ( 1.7.8 ) loaded correctly as the IDE is on my computer and can be used as you would expect.
However, under settings > devices in the start menu, the entry for the ATmega15u2 DFU says that the driver is unavalable and clicking on the 'Device Manager' entry and double clicking on the 'unknown device' entry states that "the drivers for this device are not installed (code 28). A service installation section in this INF is invalid." Clicking the 'update driver' button and clicking the 'search automatically' box produces a screen with a process bar which, after a short while, informs me that "Windows has found the driver software for your device but encountered an error while attempting to install it." The error being the same as that given earlier.
I have uninstalled and re-installed the Arduino software and got the same result.
I am not particularly skilled with Windows in general and 10 in particular.but I have tried to include everything that has happened hoping that this might be of value. Can anyone help me please?