Friday, May 2, 2014

Preparing USB Drive to Install Windows from a bootable USB Drive

These steps will take you through preparing a USB ram drive (thumb drive, pen drive, or how ever you care to refer to it) so that you may use it to boot your Windows image without the need of a hard drive (or bootable CD/DVD). These steps assume you already have an ISO image.  You can use SlySoft's Virtual Clone Drive to mount your ISO.  Click here to download

BE CAREFUL TO CHOOSE THE CORRECT DISK.  MISTAKES CAN LOOSE DATA!!!

1) Run diskpart from command prompt running as administrator (right click the command prompt icon and choose "Run As Administrator")
2) Type the command: list disk to see the available disks and note the one that represents your USB thumb drive
3) Select the disk: select disk # where # is the disk you determined in the above step
4) Now that the proper disk is selected, prepare it with the clean command by typing clean
5) Now create a partition on the clean drive by typing: create partition primary
6) Select the new partition by typing: select partition 1
7) Set the partition as active by typing: active
8) Format the partition as FAT32 by typing: format fs=fat32
9) Assign the new partition by typing: assign
10) Type exit to quit diskpart

Now you are ready to copy the files. 

Typically this file will contain three folders and a file: directories: boot, EFI, and source. file: bootmgr. Simply copy these files to the prepared USB thumb drive root and you are ready to go!
With the USB drive inserted, you will either need to go into the computer's BIOS settings at boot up and arrange the boot order to place the USB drive above the system hard drive. Alternatively most systems have a "Boot Menu" keystroke such as F12 which will let you choose the device to which you want to boot.

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