Using Microsoft USB Tool

In the previous post, I explained how to create a Bootable device manually through command line. You can use the same if you are in locked environment where you don't have internet connection to download the below tool.
 

 The above tool is specifically for Windows 7 (both 32 and 64 bit). We should install the above software with default steps and click on the desktop shortcut created-Windows 7 USB DVD Download Tool. In the below screen select the OS image file (.iso file in general) by using the browse button right side and click next after browsing the file.

Choose the media type as USB device.

If you don't have any USB devices connected it will show in the dropdown list as below.Then Connect your pendrive and click on the refresh button right side to it and it will show your USB device with its total size as description.

Click on Begin Copying and wait for the progress bar to finish and give you a prompt for completion. Bingo!!! You can use your Bootable pendrive for OS installation. Don't forget to select your device in Boot menu.

Using Command Line Tools

( This should work for any other OS too. I have tested this with Win XPP & Win 2008 Server 64bit as well)

Whenever we want to install a new OS, we use to look for a installation CD/DVD of the OS. If the OS has been downloaded from the internet or if you have archived the OS CD/DVD as a ISO file, still most of us use to burn the ISO to a DVD and use it with the CD/DVD rom.
Following method will explain how to install an OS from a USB pen drive without a CD/DVD or DC/DVD Drive.

Requirements?

1. USB Pen drive of at least 4GB. ( Size depends on the OS installation size)
2. ISO file of the OS. ( I am not explaining how to create an ISO from a CD/DVD on this article)
3. USB Boot support on the computer you are trying to install the new OS.
4. You need UltraISO 9.3 or higher. Full and portable version can be downloaded from 
  ULTRA ISO

Step 1.
Run Ultra ISO as administrator. (You can do this by right clicking on the icon and select, run as administrator)

Step 2.

Open the ISO file by File->Open->Browse for the ISO location and click open. ISO file will be opened with in Ultra ISO.

Step 3.

Plug the USB Pen drive to the computer.

Step 4.Go to Bootable-> Write Disk Image.

Step 5.

Select the write method as USB-HDD+

Step 6.

Click Format and perform a quick format on the USB pen drive

Step 7.

After formatting is over, click on the write button. You will see the following warning and click OK.

Step 8.

You will see the progress of making the bootable USB Pen Drive. This is quite fast and finish before than you expect it to finish. Click Close button when it is done and you are ready with the bootable USB Pen Drive.

Step 9

Plug the USB pendrive to the computer you want to install the OS and select the USB pen drive boot option from the boot menu.

This method works perfectly well as long as you are using uncorrupted OS ISO file. I have noticed 4-6 minutes gaps between some screens during the installation from the USB pendrive. You might fells like, the setup got stuck and not proceeding further. Please do not restart the comptuer. It will wait like that for max 4-6 minutes and continue the further. The beauty of this is even though it waited like that, rest of the setup moves very fast (Faster than installing from a CD/DVD) so total installation time remains almost same. I have installed Windows 7 using this method in my Dual Core 2.2Ghz, 2GB DDR2 with IDE HDD and it took 21 minutes to complete the setup.