Install Windows XP/2003/Vista/2008/7 from USB.Make bootable USB

EDIT ( NEW: Microsoft provided a software click here to download)

My Laptop dvd writer was not working and I have to install new operating system.so I decided to install OS using my USB.to achive  this:
I have to make my USB bootable
Make first boot My USB Drive instead of dvd writer or hard disk
This post tells you how to install Windows XP/2003/Vista/2008/7 from USB.

You just need :
Novicorp WinToFlash 0.4.0013 (2.10MB)
A USB of sufficient size about (1 to 4 GB minimum).

Make Bootable USB by Extracting 'Novicorp WinToFlash 0.4.0013 beta.zip' after downloading.

Click on 'WinToFlash.exe' to start the process.

This software provides two modes of transfer
Wizard mode:

Press Next on Wizard welcome screen.

Select the Windows source path and Usb drive with browse button and press Next.

A license agreement screen will pop up, just click continue if you accept it.
A warning telling data on USB will be formated will appear.
After completing transfer wizard, press finish. USB is now ready to boot.

Advanced mode:
Click File->new or click Task tab from main window to select task type.
From drop down menu select type of OS or task and click create.
In 'basic parameters' tab, select Windows source path, USB drive and file system for formatting pen drive. Use default if you are unaware.
In 'setup parameters' tab, you can choose option for unattended installation.
In 'process steps' tab, set option option according to need. e.g. Uncheck 'Format drive' option if you do not want to format pen drive.
Click run to start process.Follow steps 3 to 5 from wizard mode as they are same.

NOTE:

Backup required data from partition where want to install the new OS.

You may get following error

"NOvicorp winToflash can not lock the drive.

Please close the application may use this drive and press Retry."

this error shows that my usb is busy in some other procerss.
to Solve thiis Problem use Unlocker.
Unlocker is a freeware which runs on "Windows 2000/XP/2003/Vista/Windows 7" and 238KB in size.
It helps to figure out what program is using particular file or drive. Right click on your pen drive and click unlock to see all programs accessing the USB drive. Click unlock all to stop all programs accessing the drive and you can proceed with Novicorp winToflash.
If you see some suspicious programs accessing the drive then your system may be infected with viruses. Scan it with a good anti-virus program with latest updates.

Installing OS:
Restart the system. Open BIOS and set 'USB Hard disk' as first boot device.
Boot from USB. Select option 1 for starting setup.
After rebooting select option 2.
After rebooting choose appropriate OS entry from bootloader to boot into new OS.
After entering in OS, remove redundant entries from boot.ini.

References:
http://wintoflash.com/home/en/
WinToFlash Forum