While downloading Boot Camp support software (drivers) for Windows 10 in macOS using Boot Camp Assistant utility, the error message show:
The USB drive cannot be used. Please format the USB drive as single MS-DOS (FAT) partition with Master Record scheme.
Follow steps below to format the USB drive with FAT with the Master Boot Record scheme.
Step 1: Connect the USB drive to Mac.
Step 2: Open the Disk Utility using the search function.
Step 3: Click on the View button and then select Show All Devices option.
Step 4: In the External section of the left pane, right-click on the USB drive and click the Erase option.
Step 5: Type a name for the USB drive, select MS-DOS (FAT) from the Format drop-down menu and then select Master Boot Record option from the Scheme drop-down menu. Click the Erase button to erase the USB drive.
Step 6: Launch the Boot Camp Assistant.