While installing UNO Rev 3 on my Windows XP computer received warning that "Arduino UNO R3 has not passed Windows LOGO Testing to verify it's compatability with XP. This may impair or destabalize your system either immediately or in the furure."
This appeared during driver installation. I exited the driver installation. Need advice!!! I'm new at this.
It probably means that the UNO driver (it is somewhat custom made for the UNO) has not officially beentested by MS. As long as it is the driver that comes with the arduino IDE (Arduino UNO.inf), there should not be a problem.