Now look at the address bar and note down the drive letter assigned to the ISO file or USB drive in File Explorer.Open the ' sources' folder and find the largest file by size, named install.wim or install.esd.In File Explorer, navigate to the virtual drive created for your ISO file, or open the connected USB drive letter.If some other software is associated by default with ISO files, the right-click your file and select Mount from the context menu. Insert your bootable USB stick, or double-click your ISO file in File Explorer to mount it.To find what Windows 11 version ISO file contains, do the following. Checking Windows 11 Install.esd file on Windows 7 How to Find Windows 11 Version in ISO or USB Drive
