Navigate to Applications > Utilities > Boot Camp Assistant . Download via the Action Menu: Do not click "Continue" in the main window. Instead, go to the Action menu in the top menu bar. Select Download Windows Support Software .
Once the download is complete, you must apply the drivers within the Windows environment: download boot camp support software windows 10
Plug your 16GB+ FAT-formatted drive directly into your Mac. Navigate to Applications > Utilities > Boot Camp Assistant
Restart your Mac and hold the Option (⌥) key to select your macOS partition. download boot camp support software windows 10