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Windows 7 can't find driver - deactivates keyboard and mouse

I got two laptops which share keyboard, mouse and monitor using a kvm-switch. One laptop runs Windows XP and works perfectly. The other one running Windows 7, however does not recognize keyboard and mouse.

I made the hidden devices visible and deleted the unused ones. After the reboot the keyboard and the mouse work. Windows 7 tries to find the 'missing' drivers and upon failing deactivates the devices which renders them unusable again.

Has anybody had the same problem and can help me with it?

Cheers, AC


The KVM-Switch is an ATEN Petite CS692 2-Port USB HDMI KVM Switch

The keyboard a standard 102-key Logitech USB

The mouse a Logitech M705 Marathon Mouse with an unify[sic?] connector.

No adapters for the keyboard or mouse but one for dvi to hdmi on the Windows XP machine.