SAVE FILES THAT ARE IMPORTANT TO YOU IF YOU ARE FORMATTING A USB FLASH DRIVE IN USE Get an 8GB USB Flash Drive as this is easily to make on it even though it may seem small, but Windows USB Flash Drive Install/Windows Install via USB Flash Drive only takes about 4GB to 7GB of space. Then Click Install or the button in the middle of the screen and keep the USB plugged in until you have finished setup and are at the Desktop.Eject the USB drive and plug it into the Windows machine again.Once done, copy all the files from the ISO drive into the USB drive. Plug the USB drive into the Mac, open Disk Utility again select the USB drive, erase it but this time choose ExFAT as the format.Once down click Continue and unplug the USB drive. When you're done, then select the USB drive.After you see the startup menu, use the key combination that it says beside select boot device or boot selector or boot options.Plug the USB drive into the corrupted or empty computer and go to your boot selector by turning on your device and holding Esc down.When the file moving is done, you can eject and unplug the USB drive. Now, on both the ISO file and USB drive windows, click the back button to go to the root folder and move all files except the 'source' folder from the ISO file window to the USB drive window.

Switch to the USB drive window and make a folder named 'sources', double-click it, and do Cmd+ V.

Once in the folder, do Cmd+ A and search for the file named install.wim and do Cmd+click to deselect it.

On the ISO file window, open the folder named 'sources'.

Once this file is downloaded, mount it by double-clicking it. Next, head to this link and download the ISO file.

When done, double-click the USB drive icon on the desktop to open it.

Click it and select FAT/FAT32 as the format and “Master Boot Record” as scheme.

You then must find the Erase button located on the top right.

Launch it and in the sidebar, search for your USB drive by name and select it (NOTE: the USB drive's name is originally 'Unnamed' unless changed by a user).

Double-click it and search for the Disk Utility app.

Open the Applications folder (for example by selecting Go > Applications from the menu bar) and look for a folder named 'Utilities'.You firstly plug the USB drive into your Mac,.Well, this was simple for my Windows 11 laptop: I followed the instructions in Create a bootable Windows 10 installation USB on macOS:

Install win 10 on usb drive