How to Make a Bootable USB Key From an ISO

Written by marlo peterson
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How to Make a Bootable USB Key From an ISO
Creating a bootable USB key is a good way to back up an ISO file. (computer monitor iso right image by patrimonio designs from Fotolia.com)

An ISO is an image file that replicates a CD-ROM without using the physical CD drive. These files let users access all the information on a bootable CD without the actual disc. ISO files can be copied to a USB key so you can transport and use the bootable files whenever you need them, and on any system. Windows' WinToFlash can help you make a bootable USB key from an ISO file.

Skill level:
Easy

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Things you need

  • USB key
  • ISO file
  • ISO mounting software
  • WinToFlash

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Instructions

  1. 1

    Download WinToFlash software (see Resources).

  2. 2

    Open your ISO mounting software. Click on "Mount ISO" or similar option. Browse through your files and pinpoint the ISO file you want to use to make your bootable USB key. Click on that file and press "OK." Your ISO will mount and appear in a letter-drive directory (E:, F:, etc.), as if it were a CD loaded into an actual CD drive.

  3. 3

    Insert your USB key. After it loads, take note of what letter drive your USB key corresponds with.

  4. 4

    Open WinToFlash. Under the CD source area, choose the drive that corresponds with where the ISO mounting software mounted your ISO. Under USB Drive, select the drive where your USB key is inserted, then press "Next." The software will do the rest of the work to make a bootable USB key out of your ISO file.

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