What is the minimum byte capacity of a bootable flash drive for Windows 10?

The minimum byte capacity of a bootable flash drive for Windows 10 is 8 GB. This capacity is important because it accommodates the installation files, which include not just the operating system itself but also necessary drivers and various system files required for installation. The 8 GB capacity ensures that there is sufficient space to hold these files while allowing for system updates and other essential components that need to be included in the installation media.

While smaller flash drives may technically hold the ISO file, they might not leave enough room for additional files or subsequent updates required for a successful installation. Larger drives are also available, but 8 GB is specified as the minimum to ensure the process can be completed without running into space-related issues.