Hi. I have with some success partitioned my Macbook, running Snow Lepard (using the bootcamp assistant). But I have a sound problem, there is no sound in my Windows system. My Mac is only geared to run Windows versions up to Win 7, but I have upgraded to Win 10, and the operation system runs smooth, so downgrading is not the option I am looking for. And anyway a google serch reveals that the problem persist with Win 7 or older versions. I have tried to find and install Windows 7 sound drivers, but here I am at a loss and haven't been able to find any that will work. I have disabled the Driver Signature Verification, so in theory it should work. Can you help me?