The need to install Windows from a USB device, like a flash drive, is
a common one due to the fact that many computers, especially tablets
and smaller laptops and desktops, no longer have optical drives.
In other words, that Windows install disc doesn't do you much good if
you don't have anywhere to put the DVD! If you want to install Windows 8
from a USB device, you'll need to get those setup files onto a USB
device. Unfortunately, simply copying them there won't do.
Regardless of whether you have a Windows DVD you need to get on a
flash drive, or a Windows 8 ISO file with the same goal, the following
tutorial will help you get the Windows 8 installation files properly
copied to a flash drive so you can get on with the installation process.
Note: The following procedure applies equally to Windows (standard) or Windows Pro.
Difficulty: Average
Time Required: Getting the Windows installation files onto a flash
drive or other external USB device will take between 20 and 30 minutes,
depending on what format your copy of Windows 8 is in right now and how
fast your computer is.
Requirements:
A flash drive (4 GB or more) [Check Prices]
A Windows 8 DVD [Check Prices] or Windows 8 ISO file [Download Windows]
Access to a working computer, with a DVD drive if you have a Windows
DVD, with Windows 8, Windows 7, Windows Vista, or Windows XP installed
Important: If you have a Windows ISO file and want that on a flash
drive, start with Step 2. If you have a Windows 8 DVD and need that on
the flash drive, start with Step 1.
Here's How:
Create an ISO file from the Windows 8 DVD. This is the procedure by
which you create a single file, called an ISO image, that contains all
the data stored on the Windows 8 setup DVD disc.
Once you have an ISO image created from your Windows disc, come back
here and continue on with this tutorial which will explain how to get
that ISO file onto a flash drive.
Note: If you already know how to create ISO files
with your favorite program, often called "ripping," then do so in
whatever way you're used to doing it. However, if you've never created
an ISO image, or don't have a program installed right now that does it,
please see the linked tutorial above for complete instructions on doing
so with a free program.
Download the Windows 7 USB/DVD Download Tool from Microsoft and then install it.
This free program from Microsoft properly formats your flash drive
and then copies the contents of the Windows installation ISO file you
have to that flash drive.
Note: Don't worry that this program has Windows 7 in
the title. This program works perfectly well with Windows ISO files and
can be installed in Windows 8, Windows 7, Windows Vista, or Windows XP.
Start the Windows USB DVD Download Tool program. You should be able
to find the shortcut on the Desktop, as well as in your Start menu or on
your Start screen, depending on which version of Windows you installed
the program on.
Click Browse on the Step 1 of 4: Choose ISO file screen.
Locate, and then select, your Windows ISO file. Then click or touch Open.
Note: If you downloaded Windows from Microsoft,
check your Downloads folder or your Desktop for the ISO image. If you
created an ISO image from your Windows 8 DVD, the ISO file will be
wherever you created it to.
Click or touch Next.
Choose USB device on the Step 2 of 4: Choose media type screen.
Note: As you can see here, there is also a DVD option. While it
doesn't do us much good in this case, since the end game is to get
Windows's setup files on a flash drive, you could also use this tool to
burn a Windows 8 ISO image to a DVD or BD disc.
On the Step 3 of 4: Insert USB device screen, choose
from the drop-down box the flash drive or USB-connected external hard
drive you want to put the Windows 8 setup files onto and then touch or
click Begin copying.
Tip: If you haven't yet plugged in the USB storage
device you're planning on using, you can do that now and then touch or
click the blue refresh button to make it show up in the list.
Click or touch Erase USB Device if you're prompted to do so on a Not
Enough Free Space window. If you don't see this, don't worry, it just
means that your flash drive or external hard disk is already empty.
Important: If this message didn't make it apparent,
you should know that whatever data you might have on this drive is going
to be erased as part of the process of getting the Windows 8 setup
files copied.
On Step 4 of 4: Creating bootable USB device, just
wait for the Windows 7 USB DVD Download Tool to prepare the drive and
copy the Windows 8 installation files to it.
The first Status you see will be Formatting, which will take anywhere
from a few to several seconds, depending on how large the USB drive is
that you're using. Next will be Copying files which could take anywhere
from 15 to 30 minutes, possibly longer, depending on which Windows 8 ISO
file you're working from, as well as on how fast your flash drive, USB
connection, and computer is.
Tip: Don't worry if the percentage indicator jumps
ahead quickly but then sits on a single number for a very long time.
While it might not make a lot of sense to behave that way, it doesn't
necessarily mean anything is wrong.
Assuming everything went as planned, the next screen should say
Bootable USB device created successfully with a Status that says Backup
completed.
You can now close the Windows 7 USB DVD Download Tool program window.
The flash drive, or other external USB drive you're using, now has the
necessary files on it to install Windows 8 and is also properly
configured to be booted from.
Boot from the USB device that you just created to start the Windows 8 install process.
Tip: If the Windows 8 setup process doesn't start,
it's very likely that you'll need to make boot order changes in the
BIOS. See How To Change the Boot Order in BIOS if you need help doing
that.
Tip: If you have a UEFI based system and you still
can't boot Windows 8 Setup from the flash drive, even after setting the
USB device first in the boot order, see Tip #1 below for help.