How to Create a Bootable Windows 8.1 USB Flash Drive

Windows 8.1 will be out in a few days . Starting October 18th everybody will be able to purchase windows 8.1 . For people who already have a legal copy of Windows 8 , They can upgrade to windows 8.1 for free from the Windows app store .

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If you already have a legal copy of windows 8 then you can skip the wait and get your hands on the RTM version of Windows 8.1 . once you download the Windows 8.1 RTM , you can use your windows 8 serial key to activate windows 8.1 and use it before everybody else . Currently the RTM versions of Windows 8.1 are not officially available for everyone , except developers and students with a MSDN or Technet subscription. If you’re geeky enough , you can easily get your hands on a copy of the RTM version of Windows 8.1 online .

how to create a bootable windows 8.1 usb flash drive1 How to Create a Bootable Windows 8.1 USB Flash Drive

Once you get your hands on the RTM version of Windows 8.1 , you can follow this guide to create a Bootable USB flash drive to install Windows 8.1 on your PC . Also these instructions will work with the windows 8.1 preview versions too .

What do you need ?

There are many free programs out there which can help you to create a bootable windows 8.1 USB Flash drive . For this guide I would be using Rufus , because its very small and faster than all the other programs to create a bootable Windows 8.1 USB Flash drive .  Follow these instructions to create a bootable windows 8.1 USB flash drive .

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Instructions to create a bootable Windows 8.1 USB Flash drive

  • Step 1: Download and run Rufus create windows 8.1 bootable usb flash drive How to Create a Bootable Windows 8.1 USB Flash Drive
  • Step 2: From the device drop down menu select your USB flash drive
  • Step 3: For partition scheme . Select “  GPT partition scheme for UEFI computer “ if you have a UEFI enabled Bios , otherwise select “ MBR partition scheme for BIOS and UEFI computer “ .
  • Step 4:  For file system select Fat 32 if your windows 8.1 ISO file size is below 4 GB else choose NTFS . For a UEFI bios it is compulsory to have a FAT32 file system .
  • Step 5: Leave the cluster size at default and check the quick format option .
  • Step 6: check “ create a bootable disk using “ and select ISO image and select the Windows 8.1 RTM ISO image .
  • Step 7: Check “ create extendable label and icon
  • Step 8: Now click on start to create your bootable Windows 8.1 USB flash drive .

Once your bootable windows 8.1 USB pen drive is created , you can then process further with installing windows 8.1 on your PC . We will do a detailed guide about installing windows 8.1 very shortly .

  1. How do I check if my computer has a UEFI bio or the other? I tried going into Windows and then Panther folder to look for the string, but the file isn’t there.

    • I have myself used rufus to create a bootable windows 8.1 USB flash drive and installed windows 8.1 though it . I have encountered a similar error you have faced , it is probably due to a damaged or corrupted ISO image . try using a another ISO image .

    • Anononymous

      Check if your antivirus is stopping it. Mine said the same thing, but I realized my antivirus was stopping it. As soon as I turned it off, VOILA! It worked!

    • For legacy bios you need to select the ” MBR
      partition scheme for BIOS and UEFI computer ” and after you are done installing windows 8.1 you can format the flash drive and use it to store files .

  2. i have win 7 and i want to install windows 8.1 but the installer says that the setup has failed to validate the product key plz give suggestions .

  3. Zubair Mughal

    i have win 8.1 for 32 bit and also32 bit system and a usb flash{4Gb} after create bootable win8.1 usb i do not know settings of bios booting etc can anybody help me ?

  4. Welcome to HACKED ZONE UK gov & Norton inc will hack you if you use RUFUS & make installation failed .
    So use GParted iso & boot your system by GParted you will find out YOU ARE HACKED .
    Format the HDD & use one (Windows 8 OR 7 OR any ) you bought it DVD media & START AGAIN
    ALLAH SUBHANOH SEE you bad people

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