bootable pendrive
 

Dear Sir,
Help in making bootable pendrive for windows xp and windows 7

Hello narendra9981,

I suggest you use the tool created by Microsoft Windows 7 USB/DVD Tool for creating a Windows 7 bootable flash drive

You need to prepare the following requirements:

1. Windows 7 installer .ISO file
2. At least a 4GB USB Flash drive

**If you have a Windows 7 installer CD, you must convert the entire disk to an ISO file.

Download and install the Windows 7 USB/DVD Tool from this site:
http://images2.store.microsoft.com/p...B-DVD-tool.exe

1. When you have run the tool, it will ask for the ISO image
http://i53.tinypic.com/25it5ow.jpg

2. It will then ask you to select the flash drive. Take note that the flash drive will be formatted to contain only the windows 7 installer files. Backup any files that you have on the flash drive before using it as windows 7 installer.
http://i55.tinypic.com/260yiax.jpg

3. Wait for tool to format your flash drive
http://i51.tinypic.com/727p91.jpg

4. When ready, set the computer to boot from USB flash drive, connect the USB flash drive and reboot the computer. Windows 7 should now install the flash drive.

see this one.
Make a bootable USB installer for Windows XP, Vista, 7 with WinToFlash