More by: 1 When you purchase Windows 7 from Microsoft Store, you have the option to download an ISO file or compressed files. When you purchase Windows 7 from Microsoft Store, you have the option to download an ISO file or compressed files. Omsas Program Requirements Chart here. The Windows 7 USB/DVD. Size: 2.6 MB, Price: Free, License: Freeware, Author: Microsoft (office.microsoft.com) 2 AnyToISO is a simple application which allows users to convert their files into ISO images. AnyToISO is a simple application which allows users to convert their files into ISO images. The ultimate ISO Creator for Windows: can create ISO from almost everything. Size: 0, Price: Free, License: Freeware, Author: CrystalIdea Software (crystalidea.com) 3 WinToHDD allows you to install or reinstall Windows 10/8/7/vista/2016/2012/2008 without using a CD/DVD or USB drive, and you can use it to create a Windows installation USB to install any version of Windows 10/8/7/Vista/2016/2012/2008 (64 & 32 bits).