As some of you know, ImgBurn is free software and is compatible with all recent versions of Windows, both 32-bit and 64-bit systems. Step 1: Download the popular ImgBurn software from here and install the same on your PC. NOTE: These instructions work great on Windows 10 as well. The selected file is not a valid ISO file Please select a valid ISO file and try again” error with the help of free software can follow the given below instructions. Users who want to fix “The selected file is not a valid ISO file. And no, the trial software can’t handle large ISO files. The real catch is that both UltraISO and PowerISO aren’t free and you need to purchase their licenses. In order to fix this error, you need to rebuild the ISO file with ISO9660 + UDF + Joliet file system.Ī quick Google search reveals that there are plenty of guides out there to fix this error but the catch is that all of them ask you to download PowerISO or UltraISO software. While I am no expert, the error occurs when the selected ISO file has only ISO9660 file system and missing UDF and Joliet. Please select a valid ISO file and try again” error. Windows 7 USB/DVD Download Tool sports an easy-to-use interface and is compatible with Windows 8/8.1 as well as the latest Windows 10 but at times when you open Windows ISO file by clicking the Browse button, the tool shows “The selected file is not a valid ISO file. Even though there are plenty of better tools out there like Rufus to create bootable USB from an ISO file, most PC users prefer using the official Windows 7 USB/DVD Download Tool.

These days, a large number of PC users prefer installing Windows OS from a USB drive instead of a traditional DVD disc.

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