Windows 7 USB/DVD Download Tool error: We were unable to copy your files. Please check your USB device and the selected ISO file and try again

This is a repost of a post from an old blog, made on December 19, 2012, that used to be on:

http://beginner.adminramble.com/windows-7-usbdvd-download-tool-error-unable-copy-files-check-usb-device-selected-iso-file/

Original post:

I have written about how to make a bootable USB installer for Windows 7 and 8 by using the Windows 7 USB/DVD Download Tool. Sometimes if your USB stick has something in its MBR you might get the error

We were unable to copy your files. Please check your USB device and the selected ISO file and try again.

I found the solution to that problem in this post.

You have to start command prompt as an Administrator (On Windows 7 that means right clicking the cmd and selecting Run as Administrator) and use the diskpart utility.

  1. Start command prompt as Administrator and type  diskpart
  2. type  list disk
  3. type select disk  and number of your USB disk ( like select disk 1 )
  4. type  clean
  5. type  create partition primary
  6. type  select partition 1
  7. type  active
  8. type  format quick fs=fat32
  9. type  assign
  10. type exit  to exit the diskpart utility
  11. type exit  to close command prompt
diskpart

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