How To Make A Pen Drive Bootable


How To Make A Pen Drive Bootable

Hi Friends,
Many of us face a lot of problem when we have to re-install windows on our computer or laptop. First thing we have to decide from where to install windows? The options available are DVD or USB Pen drive. In the latest new netbooks, mostly there is no DVD drive. So if you want to install windows you have to go with the other option, i.e. USB Pen drive. So here I give a brief and 100% tested tutorial on how to create a Bootable USB Pen drive to install any OS from a Pen drive.
First thing, you should check whether your BIOS supports booting from USB. Most of the computer/laptops support. But if your BIOS doesn't, then sorry, you cannot boot from a USB Pen drive.
Second thing, you need another computer with Windows installed with a DVD drive, to copy its contents later.
So let us start with the procedure now:
1) Run command prompt (cmd). This can be done by clicking start and typing typing cmd in Windows 7. In Windows XP, click on start and then click on run. Type cmd and run. This will open the command prompt which will look like this:

2) Then run diskpart utility from command prompt, by typing ‘diskpart’ on command prompt and pressing enter. This will run the diskpart utility in a separate windows, which is shown in 2nd picture below:




3) Now put in your pen drive in a USB port. Your pen drive must be at least 4 GB, 8 GB pen drive is best for this purpose. Now go back to the diskpart console and type ‘listdisk’ and press enter. This will list the various storage devices available. You can see the size column of the disk and here we can see that ‘disk 2′ is our pen drive. Warning: In your computer it may be some other number. In our case it is ‘disk 2′.



4) Then you have to type ‘select disk 2′ and press enter. Note: in our case it is disk 2, in your case it may be disk 3, or disk 1 or any other number. You can enter ‘detail disk’ to see the details of the disk after selecting it to verify that you have selected the correct disk. You can see these steps in the image below:




5) Then we have to run a series of commands. The commands to be run in the order are:- 
- clean
- create partition primary
- select partition 1
- active
- format fs=fat32
- assign
- Exit
These steps are shown in the image below:








7) After the format is complete, put in 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 and copy all the contains to the Pen drive. 
When the copy finishes, we are done just remove the USB Drive safely and use it to install Windows 7 in your computer/laptop.

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