how to install windows with usb drive

how to install windows with usb drive

The fastest way to install windows 7 is from abootable usb drive. You can cut the install time down to around 15 minutes compared with 30-40 via DVD if you use a fast drive.

People still asking me to explain what is the best way to do this as many of the guides online are too complex, or require third party software which doesn’t always work as they supposed to.

With this BootableUSB guide all you need to ensure is that your motherboard supports USB booting, and this is a common feature now for most of the computers.

Today I am going to publish a step by step guide which works perfectly and doesn’t require any additional tools – I have been doing it for some time now to create bootable Windows install drives.

You need to get hold of a fast USB 2.0 flash drive. It doesn’t need to be 32GB or bigger,however, all you need is a 4GB unit. The faster it is, the better.

What you need:
– Windows 7 DVD install disc or ISO image
– USB Drive (4GB+ and as fast as you can get)
– Running Windows Operating system
– Working set of hands and eyes
– A few minutes of your life

Plug in your USB drive in the USB port:

how to install windows with usb drive

Before going any further, make sure you have removed any important files on your drive to a safe location, what we are about to do next is to erase the entire contents of the drive.
Insert your DVD of Windows 7 into the computer, but don’t start the normal install process.
Open your ‘My Computer’ and make a note of the drive numbers of both the USB drive and the DVD drive with Windows 7 files on it.

how to install windows with usb drive

As you can see from the image above, the DVD drive is drive has letter D assigned and the USB drive is E.
Open the command prompt with admin rights. Type cmd in Start menu search box and hit Shift+Ctrl+Enter.
To keep things really easy, if you see text in upper case, it means this is what you type into the command prompt (you don’t need to type in upper case).

how to install windows with usb drive

Next type

DISKPART

this loads the diskpart application we need to proceed

Then type

LIST DISK

the image above shows our 32 GB USB drive is listed as DISK 2

so you have to type

SELECT DISK 2 (your USB Drive may have a different number, don’t follow exactly this text it depends on your usb drive)

You will get a successful response “Disk 2 is now the selected disk”

how to install windows with usb drive

Next we want to clean the USB drive

Type:

CLEAN

you will get a successful response ‘DiskPart succeeded in cleaning the disk”.

how to install windows with usb drive

After the drive is cleaned follow the list in the image above (detailed below in list order) – you can also note the successful text responses from the OS as you enter each command.

SELECT DISK 2 (or what number your USB drive has)

CREATE PARTITION PRIMARY

SELECT PARTITION 1

ACTIVE

FORMAT FS=NTFS

Formatting can take a little time depending on the size of the drive, our 32GB unit took about 10 minutes to format - you will see a percentage readout until it is finished.

how to install windows with usb drive

Next type:

ASSIGN

EXIT (DISK PART will exit)

Type D: CD BOOT (substitute the “D” if necessary with the letter of your Windows 7 DVD drive)

then key

CD BOOT

then

BOOTSECT.EXE /NT60 E: (substitute the “E” if necessary with the letter of your now ready USB drive) – we are telling the system to create a boot sector file on the USB drive.

Now you can exit the command prompt and copy all the files on the Windows 7 DVD to the USB drive.

Once this step is finished you’ll be ready to boot from this drive, all you need to do is configure your motherboard bios setup to boot first from USB rather than hard drive or optical drive. If you don’t know how to do this, refer to your specific motherboard manual or search the internet.

Now, Windows 7 installation should take between 40% and 60% of the time it does from the DVD disc.