Windows 11 is also available for ARM devices so it’s highly unlikely that someone would build a multi-arch ISO knowing the 32-bit version doesn’t exist for it. remember if you have a 6GB ISO file you need at least 8GB storage to properly create a bootable USB. In the case of multiple architectures, the size can go up to 6GB. The official Windows 11 64-bit ISO file size is 5.2GB for the English language, we checked this information in October 2021. Of course, this will be a different scenario when you upgrade to Windows 11 because Windows puts everything in a Windows.old folder and sometimes trims the folder to adjust accordingly. So aim for at least 30-to-40GB empty space on the installation partition. Always take a margin of about 10-20 GB additional for drivers and apps. Depending on your computer hardware such as Graphics card and utilities it can set you 1-2GB additional storage occupation as Drivers of Nvidia and AMD are bulky in size.