http://en.community.dell.com/support-forums/software-os/w/microsoft_os/3316.2-1-microsoft-windows-7-official-iso-download-links-digital-river.aspx http://en.com

http://en.community.dell.com/support-forums/software-os/w/microsoft_os/3316.2-1-microsoft-windows-7-official-iso-download-links-digital-river.aspx http://en.community.dell.com/support-forums/software-os/w/mi... These ISO's should work on any machine as long as you have a valid Windows 7 Product Key. I've always bought at least one OEM copy of Windows, or purchased upgrade copies when a new version is released. I picked up three copies of the Windows 7 DVD set (x32 and x64) for $40 each on Amazon, and you can pick up ISO's of Windows 8 directly from Microsoft for $40 a pop. http://windows.microsoft.com/en-US/windows/buy?ocid=GA8_O_WOL_Hero_Home_FPP_Null http://windows.microsoft.com/en-US/windows/buy?ocid=GA8_O_WO...