Step #1
Open up Command Prompt
You can do the first step within a normal command prompt window or within the WAIK Deployment Tools Command Prompt Window.
Step #2
Diskpart
This launches the DiskPart program which is included within Windows Vista x32, x64 and Windows 7 x32, x64.
Step #3
List Disk
Before you do anything you will want to see which disk is which on your computer.
Step #4
select disk 1
You will want to pick the corresponding disk in which you want to use for your bootable flash drive. Careful, because this will completely erase the disk you select.
Step #5
clean
This cleans up your disk.
Step #6
create partition primary
This creates the partition on your flash drive.
Step #7
select partition 1
This selects the partition you just created in Step #6.
Step #8
active
This marks the select partition as active.
Step #9
format fs=fat32 quick
This will format your flash drive in FAT32 format. Make sure you use the quick command otherwise it will do a standard format and will take a while. For bootable flash drives the quick format will always be fine. You can also add the NTFS switch instead of the fat32 switch.
Step #10
assign
This will assign the next available drive letter to your flash drive. (You can also specify which drive letter you would like it to be assigned)
Step #11
exit
This exits DiskPart.
Step #12
exit
This exits CMD.