Hi
Do you really need that many kits installed ??
Desktop QT 5.6.2 MinGW 32bit -> can make normal win32 apps in 32 bit. Run on win 10 64 bit too ( as 32 bit)
Desktop QT 5.6.2 MSVC2013 32bit. -> 32 bit, you must install compiler yourself. VS 2013 ONLY ( runs on 64 bit too)
Desktop QT 5.6.2 MSVC2013 64bit -> 64 bit, you must install compiler yourself. VS 2013 ONLY ( runs ONLY 64 bit )
Desktop QT 5.6.2 MSVC2015 32bit -> 32 bit, you must install compiler yourself. VS 2015/17 ONLY ( runs on 64 bit too)
Desktop QT 5.6.2 MSVC2015 64bit -> 64 bit, you must install compiler yourself. VS 2015/17 ONLY ( runs ONLY on 64 bit)
Desktop QT 5.6.2 for Universal Windows Patform 32bit Not a Desktop app. WinRT only app
Desktop QT 5.6.2 for Universal Windows Patform 64bit Not a Desktop app. WinRT only app
Sounds to me you can just use mingw. for both 32/64 bit unless you want app to be 64 bit ?