Hi all, I recently had a critical issue installing the drivers for my Scarlett 2i2 2nd generation. I couldn't find anything online about this issue but by a stroke of luck I solved it myself, so I though I'd share my results for anyone who is currently tearing their hair out over this problem.
After I first installed the device drivers the red light on my interface came on, but not the green light, and Ableton was unable to find the interface. There were two drivers under the focusrite audio section, one called "Scarlett 2i2" and another called "USB audio root", both of which have expired certificates. These drivers were downloaded from: https://customer.focusrite.com/support/downloads
I unistalled the focusrite drivers from the windows device manager, then unplugged the audio interface. When I plugged it back in, the green and red lights on the interface came on. I checked the device manager, and a new driver called "focusrite control" was installed, even though the regular drivers listed above were not installed. The description for the "focusrite control" driver said that the device drivers were not installed, and needed to be installed.
I went back to the orignal download site listed above and redownloaded the original drivers as the "control" driver suggested. As soon as I did, the "control" driver went away and the green light on the interface went off - back to square one.
At this site I downloaded Windows: Focursrite Control 2.3.4. After installation, I did not see the same "focusrite control" driver that I had seen before, but instead three new drivers in the "focusrite Audio" section. "Scarlett 2i2 USB", "USB audio root" and "Software root" - all with proper certificates. Novw everything works fine.