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Today I inserted a pendrive in my PC and decided to mount it inside Virtualbox. Everything worked, but a message popped up on my host machine telling the that the Virtualbox USB driver was succesfully installed (it wasn't the first time I used this pendrive).

Why did this message pop up in my host machine? I was expecting it to pop up inside the guest machine, since it was the first time I mounted it inside there.

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up vote 1 down vote accepted

If this is the first time the device had been connected to the VM, then VirtualBox had to install a USB driver on the host machine to allow it to interface with the host machines USB devices (specifically this device).

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So will it do this every time I connect a new USB device? – user1301428 Dec 20 '12 at 16:05
@user1301428 It depends upon the device. It should only happen if it's a new, never before used device. – Justin Pearce Dec 20 '12 at 16:29
But isn't the driver the same for every device? – user1301428 Dec 20 '12 at 19:57
@user1301428 Possibly, but the device ID for each device is new. – Justin Pearce Dec 20 '12 at 20:20

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