Make Pendrive Bootable --> For Window 7 and Window 8 Operating System

STEPS:-

1.      C:\

2.      C:\> diskpart

                            à  opening a new window, for this click yes

3.      DISKPART > list disk

                       àSee the disk that is a pendrive ie disk 1

4.      DISKPART > select disk 1

       à Disk 1 is now the selected disk

5.      DISKPART > detail disk

6.      DISKPART > clean

       à DiskPart succeeded in cleaning the disk

7.      DISKPART > create partition primary

       àDiskPart succeeded in creating the specified  

                                partition

8.      DISKPART > select  partition 1

9.      DISKPART > active

10.   DISKPART > format fs=fat32

11.   DISKPART > assign

12.   DISKPART > exit

After the format is complete, put your original Windows 7 DVD in your DVD drive, or if you have an .iso image of the DVD, mount that image using any virtual drive software like Power ISO.
- Now go to My Computer, and open the contents of DVD Drive. Press ‘ctrl+a’ to select all contents and copy all the contents by pressing ‘ctrl+c’.
- Now go back to My Computer and open the USB Drive and press ‘ctrl+v’ to paste all the contents of DVD into the USB Disk.