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 wanted to re-install Windows 7 and created a bootable USB (using command prompt I restarted my PC and selected primary boot device as USB-HDD (my BIOS also gives options USB-ZIP USB-CDROM and USB-FDD) but it went straight to usual boot. That it to dual boot screen. I thought maybe I chose wrong boot device in BIOS I tired all other options with no luck. Finally I formatted the USB and used Windows 7 USB DVD Download Tool to create a bootable USB. That have not fixed the issue.

I have one idea why I cant boot from flash. I have a dual boot (Win7/Ubuntu) on my machine. That could inter fear with PC`s booting process.

If you have any idea how to fix it or have meet similar problems please share your knowledge.

share|improve this question
Did you run the setup.exe that you get when you download that tool? It looks like you have to run that first to extract the boot.wim file properly to a formatted (FAT32) flash drive. – Zero Stack Aug 23 '12 at 15:03
I used wrong formating for my flash thou it is still strange that installation was affected. – Povylas Aug 23 '12 at 17:35

The either of the following links would guide you to format your flashdrive in the optimum way

Link 1

Link 2

share|improve this answer
Neither of them helped.... – Povylas Aug 23 '12 at 19:44

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.