To remove that drive I think you would have to start Alcohol and set the number number of Virtual drives to zero, then go into device manager and remove it. Not sure why you would want to do that though. To add up to 31 virtual drives you have to have a registered copy of Alcohol 120% and then change the number of virtual drives from 0 - 31 and it will do the rest. You will see on the left hand side a button marked "Virtual Devices" Click that and you can change the settings in there.
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