Installing Windows 7 on a netbook is a real hassle because there is no optical drive present in it. You can either use bootable USB drive or ISO file to install Windows on your computer.
If you go through Microsoft website, you won’t find direct download link of ISO file easily. There are other links through which you can easily download Windows 7 ISO files. After installing the files you can make bootable disk or bootable USB using this tool. Given below are the download links of ISO file for Windows 7 Home Premium and Windows 7 Professional. These links are from Digital river which is an online store to download Windows 7 ISO.
32-bit Windows 7 Home Premium x86 ISO
64-bit Windows 7 Home Premium x64 ISO
32-bit Windows 7 Professional N x86 ISO
Note: The size of each link is more than 2 GB. It will take time to download any file depending upon your internet connection. You can use any download manager to download the file because your download will resume automatically after any interruption.
[via My Digital Life]