In order to use a custom ISO file, wrote a neat, handy tool that locates and copies the AVDP file of your ISO that is needed:ĭownload AVDP locator Install Windows 7 without burning a DVD!

Please Select a valid ISO file and try again”, when you try to use a custom ISO file: You will receive the error “The selected file is not a valid ISO file. By now, after some bug fixes the tool is available again as open-source. Microsoft released a USB DVD download tool that allows you to grab an ISO file from Microsoft’s own store and then put it onto a USB stick, but it won’t let you use a custom ISO file or it will simply give you the error message “ selected file is not a valid ISO“.Īccording to, the Windows 7 USB download tool was using open source code and Microsoft had to remove it.