I put a "DELAY 5000" in the beginning, and "GUI r" still doesn't work on win8.
But it doesn't matter : as phpsystems said, there is still the "CONTROL escape" shortcut in this OS.
Now, I'm testing my payload on Windows XP. It failed a few times, but I understood that it was because I was using it on a VM : some random keys fail, sometimes, with vms.
Okay, so I tested it on a real windows XP and the ducky's behaviour is pretty unstable. The worst part is that some commands doesnt work, like "CONTROL x", "CONTROL c", "CONTROL v". I'm trying to replace them with more complex operations (F10 - RIGHT - DOWN - DOWN - DOWN - ENTER, in windows explorer, to copy a file) but it's really bothering, because it takes more time, it's not discreet, and it's not really stable either...
So do you have any idea on why those commands doesn't work ?
Do I have to update the ducky's firmware or anything ?