This ISO is strictly for clean installations . Upgrading from a previous version of Windows is not supported with this specific release. Creating Installation Media
This "All-in-One" (AIO) package contains 33 different editions of Windows 7, combining both 32-bit (x86) and 64-bit (x64) architectures into a single bootable ISO. Updates: Critical and security updates through August 2017. windows-7-sp1-x86-x64-aio-33in1-oem-ptb-aug-2017-gen2
Integrated USB3 and network drivers to ensure compatibility with newer hardware. This ISO is strictly for clean installations
Because this is a large "33-in-1" ISO, it often exceeds the size of a standard 4.7GB DVD. windows-7-sp1-x86-x64-aio-33in1-oem-ptb-aug-2017-gen2