I have a number of 'bare' hard drives that I use to store stuff on. These I connect to the machine via an IDE/USB cable on an 'As and When' basis. If such a drive has not been used for a while[a week say] Windows will want to 'Install New Hardware' Then it will tell me the software does not have the Approval do I want to Continue.? Strange thing is - no software has been installed - The drive is connected simply direct and Windows is left to sort it self out. So I guess this proves the M/S really does not know what it is doing most of the time.