Alistair Bahr posted a comment on discussion Questions and Support

I'm using this now and it seems to work: #IfWinActive ahk_class CabinetWClass *^+Tab:: Send ^+{Tab} ;if on Quick Access or This PC skip +Tab if !(WinActive("This PC") || WinActive("File Explorer")){ Send +{Tab} } ; without this tab the sidebar gets selected else{ send {Tab} } return #IfWinActive