The latest operating system for the ReMOTE is version 2.3.03. To find out the version of operating system installed in a ReMOTE hold down the F4 button next to the top C key and turn the ReMOTE on. The installed OS will be displayed on screen for a brief period of time. The OS files and a Windows utility can be downloaded from the Downloads page of the website. If the ReMOTE is being used with a USB hub it will be necessary to power the USB hub so that enough current can be supplied the ReMOTE. If the ReMOTE is used with an unpowered USB hub this may cause improper operation of the ReMOTE and/or the computer the ReMOTE is connected to.