You can vist this page to download a copy of 7.7.1 We have been successfully using a prior version(7.7.1) under Windows 10 with no problems at all, so you can also try using 7.7.1 if the latest version does not work for you. Note that some users have reported that this version does not work correctly when they tried to update the Harmony 900. The version (7.8.0) can be downloaded from here. Logitech has recently updated the driver for the Harmony 900 and H1000/1100 to be compatible with Windows 10. Instructions below are per Logitech's technical support: Finally, if there is still no change, then you may need to use a new set of drivers. If there is still no change, you may be able to USB-connect while the remote is in Safe Mode . If there is still no change, then do the exact same procedure again (battery pull, shut down, etc), but this time, have the remote USB-connected before the computer is powered-on. If communication does not start up within 15 seconds or so, try unplugging the cable from the remote, wait 3 seconds and plug it back in. This procedure will put the remote and computer into a fresh starting state, which can be important for loading the driver. For the computer, you should shut it down entirely (full power-off), re-boot and then launch the Harmony Software and USB-connect the remote. Note that the battery needs to be well-charged and installed for the H900 or H1000/1100 to be able to USB-connect. What that means is that you should pull the battery from the remote, wait a full minute and then re-install the battery. Always make sure that your USB cable is working properly (test with another device like a camera) and, if you are having connection problems, always start up from a fresh, initial state. This newer application for configuring Harmony controllers is not compatible with these models. First, if you are trying to connect a Harmony 900, Harmony 1000 or Harmony 1100, do not try to use MyHarmony. USB connection problems can be caused for many different reasons and, although there are hardware-related failures (which are relatively rare), most USB issues can be traced to driver versions, software and OS settings that can affect connectivity.

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