Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying this windows 7 usb/dvd download tool that I discovered from ars technica:

But I don't know why my windows 7 iso file does not work and its saying that its not a valid iso file. What do I do, do you know of other tools that can burn / extract iso file contents to a flash drive? Except the tool that is always showing up when you search in google, the command prompt one: A free tool for windows xp or 7

share|improve this question
up vote 2 down vote accepted

You could try the Microsoft's Windows 7 USB/DVD Download Tool which is their tool for putting their ISOs onto a bootable USB stick.

I used it to install Windows 7, worked like a treat.

You can also get a decompresser like 7-Zip that will open ISO's, and should help you figure out if the ISO is corrupted.

share|improve this answer
the tools which you are saying is exactly the same tool that I mentioned that didn't work. – Ieyasu Sawada Apr 26 '10 at 1:46
Hey you're right. I looked at the link, but since I only saw command-line action I figured it was a different tool. If it doesn't work, and an ISO-aware decompresser like 7-Zip can't open it, then I'd say the ISO is corrupted. – Ƭᴇcʜιᴇ007 Apr 26 '10 at 12:42

hmm the official location for the usb tool is so I'm not sure what you downloaded.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.