I have recently had a stick N24 (Vodafone) will be removed.... and installed. Works fine on the laptop Have it now on my "good computer" hung. Had also worked as flawlessly.

Now to my problem since I use this stick now does not my CD drive? Strangely, the drive will work once Surf Drive (D) Type CD? And further, removable Disk (F) Type: Removable Disk? Displayed.

I put a CD and then try to removable disk (F) Explorer to open
I get the message: Insert a disk in drive F is a. No matter what I insert a CD.
And if I open Explorer to surf stick I get just the content of the Surf Sticks
displayed. I then uninstalled the surf as a test stick and the associated program.
Restart it is then displayed at all no CD drive.

After much tinkering in the registry, upper lower filter delete, to activate the device manager.

Windows Update, the service of N24 I could not help which is supposedly a problem not known
I do not know more to help.

I would be very grateful for every helpful tip