How to install windows 7 on a VHD (Virtual HDD)

Step 1:  Insert the Bootable Usb drive or media 

Step 2: select the f9 key or startup-boot menu , select the usb boot

Step 3: windows is loading now and show install windows 7 now , do not click install

Step 4: press shift+f10  , now a command prompt is open.

Step 5 : type diskpart

DISKPART>  LIST DISK

DISK 0      232 GB LOCAL HDDDISK 1      7448 MB USB HDD

DISKPART>  SELECT DISK 0

*DISK 0      232 GB LOCAL HDD

DISK 1      7448 MB USB HDD
DISK 0 IS NOW SELECTED

DISKPART> LIST VOLUME

VOLUME 1   C
VOLUME 2   D
VOLUME 3   E
VOLUME 4   F

DISKPART> SELECT VOLUME=2

DISKPART> CREATE VDISK FILE="D:\TEST.VHD" MAXIMUM=40000 

TYPE=EXPANDABLE

TEST.VHD IS SUCESSFULLY CREATED

DISKPART> ATTACH VDISK

TEST.VHD IS SUCCESSFULLY ATTACHED.

NOW EXIT THE DISKPART

DISKPART> EXIT

STEP 6:  Now click Install now Button and choose custom option  and Format the selected VDISK and install the WINDOWS 7 on the Virtual HDD