Logic Sniffer: Windows 7 keyboard failure after update

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In rare cases USB keyboards may stop working under Windows 7 after an update of the Open Logic Sniffer. This appears to be a Windows 7 problem.


From a discussion in the forum it appears the solution is to replace usb.inf:

  1. For some reason the file C:\Windows\usb.inf vanished after the Logic Sniffer update
  2. Recover it from C:\Windows\System32\DriverStore\FileRepository\usb.inf_amd64_neutral_153b489118ee37b8\usb.inf (or the correct processor for your system)
  3. Force a new device detection in Device Manager, the keyboard will be detected

If you have this problem please share with us in the forum, we are trying to track down the cause.