Hi friends, sometimes we need to make pen drive bootable for installing windows in Computer or PC, Laptop. For this here are some easy steps through which you can make Pen drive bootable:-

For this you will need:-
1.     PC running Windows XP/Vista/7/8
2.     Windows 7, 32/64-bit (depending on the system) installation disk
3.     USB drive with at least 8GB of free storage


Preparing the USB Pendrive:
1.     Open command prompt as administrator - Right click on Start > All Programs > Accessories > Command Prompt and select Run as administrator or type cmd in the Start search bar.
2.     Run diskpart utility by typing diskpart into command prompt window and pressing “Enter”.
3.     Locate your USB drive disk number by executing list disk. We'll assume the USB drive is 1.
4.     Run the following commands:
    • select disk 1
    • clean
    • create partition primary
    • select partition 1
    • active
    • format fs=NTFS
    • assign
    • exit
Now we have prepared USB drive. Let’s make it bootable:
1.     Insert Windows 7, 32/64-bit installation disk into DVD drive. Let's assume it's E
2.     Go to E:\boot (cd e:\boot)
3.     If your USB drive letter is “e” please run bootsect /nt60 e:
4.     Copy DVD Windows 7 media content to USB root folder (etc. don't put it into any folder)


You are now ready to install Windows 7 from USB flash drive!