Running Windows 7, and I have just downloaded the latest Android Studio version, and started a project. Now I'd like to test the application on my device but Android Studio says on the bottom left "No devices connected". I've tried a couple of things such as:

1. Updating my Samsung S6 edge drivers through device manager, which were updated now.
2. Have debugging mode turned on and USB debugging mode on.
3. Ran `adb devices` command to list devices but none show up.
4. Downloaded new universal ADB drivers.
5. Toggled between MTP and PTP modes.
6. Restarted computer/phone/Android Studio/ADB tens of times.
7. Deleted phones drivers from device manager and installed again.
8. Re-installed Android Studio.

I'm at a loss as of now. How do I fix this issue?