Boot Camp Support Software 4.0.4033 is a collection of Windows drivers developed by Apple. When you install Windows natively on a Mac via Boot Camp, the Windows operating system cannot communicate with the Mac's custom hardware out of the box.
Once the process is complete, click and Restart your Mac to apply the changes. Troubleshooting & Compatibility Bootcamp 4.0.4033 Download
You will notice the screen resolution looks incorrect, and the Wi-Fi or audio might not work yet. This is normal. Boot Camp Support Software 4