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INSTALLATION
TO INSTALL THE WINDOWS 7 USB/DVD DOWNLOAD TOOL:
Click to open the Windows 7 USB/DVD Download tool installation file.
When you are prompted to either save the file to disk or run it, choose Run.
Follow the steps in the setup dialogs. You'll have the option to specify where to install the Windows 7 USB/DVD Download Tool.
NOTE: You need to be an administrator on the computer you are installing the Windows 7 USB/DVD Download tool on. The tool requires the Microsoft .NET Framework version 2.0 or higher.
http://www.microsoftstore.com/store/msus/html/pbPage.Help_Win7_usbdvd_dwnTool/ هذا الرابط
