I believe I am in the specified folder, which in my case it's "C:\adb
EDIT: It says my posts wont be approved until a moderator sees them so for now here are the instructions I followed ...
Yes, so when it's plugged in and it's COMPLETELY booted up to lockscreen, then the computer finds it. The problem occurs only when I go to either recovery or fastboot mode, then the adb devices shows nothing again and neither does fastbot