You cannot use this version on modern Macs. Boot Camp 4.0.4033 target models released between 2010 and 2012. Supported Mac Models
To install this version, you typically need to run the Windows Support Software installer within your Windows partition. Bootcamp 4.0.4033 Download
Insert the USB flash drive containing the Boot Camp 4.0.4033 files. You cannot use this version on modern Macs
If your hardware functions properly but the specialized taskbar icon is missing, run AppleControlPanel.exe as an administrator directly from the Program Files\Boot Camp folder on your local drive to fix the registry settings. Bootcamp 4.0.4033 Download