After you use Boot Camp Assistant to install Windows on your Intel-based Mac, you can use Boot Camp Control Panel in Windows to change Boot Camp options and configure hardware.
In Windows on your Mac, click in the right side of the taskbar.
Click the Boot Camp icon , then choose Boot Camp Control Panel.
If a User Account Control dialog appears, click Yes.
In Windows on your Mac, click in the right side of the taskbar.
Click the Boot Camp icon , then choose Boot Camp Help.
What is left, is pure EFI. You can copy-paste the EFI folder to a FAT32 formatted USB stick (use Disk Utility in macOS, Format: MS-DOS (FAT), Scheme: Master Boot Record, and named something else than 'EFI') which works as all-in-one package for AMD/NVIDIA/macOS/Windows automation, including TB1 and TB2 Macs too.
In Windows on your Mac, do one of the following:
Click in the right side of the taskbar, then drag the Boot Camp icon into the taskbar.
In the search box in the taskbar, type “taskbar settings,” click “Select which icons appear on the taskbar,” then turn on Boot Camp Manager.
In the Start menu, choose Settings, click Personalization, click Taskbar, click “Select which icons appear on the taskbar,” then turn on Boot Camp Manager.
You must use Boot Camp Assistant to remove Windows, or a partition that was created with Boot Camp Assistant, from your Intel-based Mac.
WARNING: Do not use any other utilities to remove Windows or a partition that was created with Boot Camp.
Start up your Mac in macOS.
Back up all important data stored on your Windows partition before you remove Windows.
WARNING: When Windows is removed, the Windows partition—as well as all data stored in the partition—will be erased permanently.
Quit all open apps and log out any other users.
Open Boot Camp Assistant , then click Continue.
If the Select Tasks step appears, select “Remove Windows 10 or later version,” then click Continue.
Do one of the following:
If your Mac has a single internal disk, click Restore.
If your Mac has multiple internal disks, select the Windows disk, select “Restore disk to a single macOS partition,” then click Continue.