THANK YOU SO MUCH!!!! spent couple hours trying to fix it and was able to run it on windows 7!
To get this working on Windows 7, go to device manager. You should see "VR headset" with an exclamation symbol next to it, signifying no driver. Right click, select "Update Driver Software", choose "Browse" and select the folder containing the extracted drivers. You'll see "Oculus ADB Interface" once complete.