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I have a Windows 7 ISO image. I am trying install it in a virtual machine. The virtual machine which is created by the VirtualBox software is asking for a bootable iso image? I do not have any CD/DVD in this computer. I have an external drive on which the ISO image is currently present.

How do I create a bootable iso image? Is there a freeware to do this?

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Where did the W7 iso come from? – Moab Feb 20 '11 at 17:43

You can mount the ISO through Virtual Box.

When the VM starts up, it will read the iso just like a DVD.

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Yes, the ISO should already have a bootsector if it is a real Windows 7 image. – Synetech Feb 21 '11 at 3:55

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