Not a M$lop 7 user, however ensure you are plugged directly into the computer not a hub, When installing the driver do not allow it to search, Browse to the program files/arduino/drivers directory for the .inf.-Enjoyfh : )_~
I have windows 7 ultimate 64bit. I plug arduino uno r3 the first time, the windows did not recognize the board. However, I try to update driver through "device management" in windows 7(right click the unknown one - try to unplug and plug the board, you will see the unknown driver which is of the board). and then browse to the file driver in the arduino IDE installation folder ( google it), it will automatically install the driver. Everything fine now.However, someone does mention about the FIDI driver (kinds of virtual driver), you should try download and use this instead if everything above fail.good luck
What board are you using? The new Arduino boards (like the Uno) don't use the FTDI chip or drivers. When browsing for the driver file, select the main "drivers" folder (not the "FTDI Drivers" sub-folder).
Did you get it to work ??-Enjoyfh : )_~
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