The error was “HP Officejet Pro 8620 – “An error occurred while communicating with the scanner. I have a HP Office Jet Pro 8620 which now refuses to scan no matter what convolutions I put my laptop through.I am finding VMWare Fusion won’t run if osxfuse is loaded or vice versa (I have a work-a-round for this in my setup it involved removing the legacy virtualbox modules using kextunload) There seems to be a limit to the number of kernel modules that MacOS X will load so by the time you install VMWare Fusion, VirtualBox (for a docker environment) and osxfuse (to allow you to run encfs).So the upgrade to MacOS Sierra hasn’t really ran as smoothly as I would like for the following reasons