If you cant buy a copy of Windows 7 from a local shop you can Dnload the Valid ones from Digital River a MS support site But they install as a Trial versions and will need a Key after 30 days, but may be you can buy a Key from Microsoft, or may be you have a installed version that has failed and no backup CD/DVD. These are Windows 7 SP1-U ones the latest. [URL]http://www.w7forums.com/threads/official-windows-7-sp1-iso-image-downloads.12325/page-2#post-124821[/URL] Many other links but note some don't have the SP1 included. Please don't forget the N versions are meant for the EU and don't have a built in Browser. Full MS Info. [URL]http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install/cannot-find-digital-river-download-site/66a8439b-0d16-4b70-92f7-1c8486a46ebf[/URL]