This evening I was greeted with the message "cannot open Airspy device" when I try to use it with SDR#. I have no idea what changed or why. I tried a system restore point but it had no effect.
How would I completely remove the Airspy drivers and start over?
No drivers to remove, really. I'm guessing your using a version of Windows. At any rate, from time to time my Airspy will simply become unresponsive / undiscoverable. I could just yank the USB cable and insert it back in and make sure it is detected, but I try to be careful and i actually click on the icon to safely remove USB devices, select the Airspy, and then I remove the device when it says it is okay to. Then I wait a few seconds and plug it back and voila.
For my Airspy at least, it isn't crashproof. Something in the Airspy or its driver [happens to me in both Linux and Windows] causes it to become unresponsive -- usually when I'm changing around sample rate / decimation.
Mike