If the Human Interface Device (HID) is not listed in Device Manager after a USB touchmonitor is connected -

• Make sure a file named mouhid.sys is in the \windows (or winnt) \system32\drivers folder
  • The file will be missing if a USB mouse has never been connected to the system
  • If the file is not there, connect a USB mouse to the system or copy mouhid.sys from another system
  • Once mouhid.sys is in the proper location, remove and reinstall the touch drivers
• Possible: Missing or corrupted HID files ("Error installing mouse" when installing the HID Drivers, and also a yellow "!" in Device Manager under Mouse). Check that all of the following files are present in the \\winnt\system32\drivers folder:
  • Hidusb.sys
  • Hidclass.sys
  • Hidparse.sys
  • Mouhid.sys
    If all the files are there, try replacing them with the same files from a known good system. It is suggested that you save the original files in a backup directory.