Most USB drives come pre-formatted as . However, FAT32 cannot handle individual files larger than 4GB . The Windows 11 installation file ( install.wim ) is larger than 4GB.
According to Microsoft, the minimum USB size required for a Windows 11 installation is 8GB. This may seem like a standard requirement, but it's essential to consider the actual installation size of the operating system. The installation files for Windows 11 take up around 4GB of space, leaving some wiggle room for the USB drive to accommodate the installation process. windows 11 usb size