Every time Windows 10 updated itself Insync has to be reinstalled…Not sure if this anything to do with AVG virus protect software also?
@Gerbrand_Bas: Do you mean the Insync gets uninstalled automatically? It should not happen.
When it updates next time, could you check the contents of the following folder on your machine: %appdata%\Insync\App i.e. C:\Users[Username]\AppData\Roaming\Insync\App and check if Insync.exe is present there. Try to run it and let us know how it goes.
Thanks