Horizon is not recognized by software

[Fludoc]

Worked fine in the past. After sitting in my go to bag for about 6 months will not connect to my computer. Have tried multiple cables and computers but na da. Fan goes on but no one home at the inn with Atik or other software.

[Noah4x4]

I twice suffered this after Windows Updates.  Had to reinstall all of my drivers for camera, focuser etc. My theory is Microsoft is possibly trying to clear out drivers that it has not certified (nor earned money upon!). Try reinstalling Atik core software, ensuring that 'Drivers' is ticked.