7.18.5 Disk Space Requirements for Microsoft Windows Server 2019 (64-bit)
For all install types and components, 672MB is the minimum disk space requirement for installation on Microsoft Windows Server 2019 (64-bit) on x86-64 with Intel/AMD64-bit processor. This requirement assumes installation of the default components for the selected install set.
Parent topic: Microsoft Windows Server 2019 (64-bit) on x86-64