No Available Windows Problem & Solution
Problem: brand new Mac Book Air: when I tried to open anything, a small pop up appeared in the middle of my screen saying "no available windows".
Solution: I was pressing too hard on the new key pad. As soon as I lightened up my touch, the "no available windows"pop up disappeared and I can open everything. Press too hard and it comes up again.
A senior Apple Care person confirmed that this was the issue. He also suggested that I go into System Preferences/Track Pad and uncheck the "Force Click" button.
Why did this happen? I'm used to a 6 year old Mac Book Pro, where the track pad and keyboard require a heavier touch.
MacBook