Installing Windows 7 using a pendrive is very much faster than that from DVD/CD. You just need to follow some small steps to do this. You can keep this pendrive/USB drive for future installation of Windows 7. If you are a beginner or dont want to get messed up by typing in all commands, here is a Free Utility To Create A Bootable USB To Install Windows 7, Vista & Server 2008(http://cid-f52381d9f2fd5fd8.skydrive.live.com/browse.aspx/ABUSB). This tool will help you to automate the process of bootable pendrive’s and you can install windows 7 from pendrive easily. If not you can follow this guide to install windows 7 from a pendrive.
installing of utility
Check USB drive (To check whether your USB drive is connected or not)
Format USB Drive
Choose DVD or ISO image (To copy the needed files to USB drive)
Start the process to create bootable USB drive
Bootable USB automatically runs the required commands in Windows 7 / vista fro making the USB drive bootable. All you need to do is to follow these four simple steps.
Note: Windows XP users cant Run this utility. If you try to run it Bootable USB will show a message saying that ” Unsupported Opperating System. Supported Operating systems are Windows Vista (SP1 or later) “. On Vista with no SP there is an error diskpart which is solved later by microsft on SP1 and later.
And before selecting the DVD or ISO image of the Windows 7 or Vista installation make sure it is free of errors.
Bootable USB works with 64 bit versions of Windows 7, Vista too. Bootable USB is a nice and sleek application that is of great use in creating A Bootable USB To Install Windows 7.
Make sure you have a Pendrive or USB drive with a minimum of 4 GB space and you have the Windows 7 installation DVD. This tutorial is best suited if you have a Windows 7 DVD with you else you need to change it
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Format the Pendrive or USB drive in NTFS format first.
From the start menu right click on the command prompt and select “Run as administrator“.
Now type the following commands (Press enter key after each command).
diskpart. This is to open the disk partition program.
Now to show the list of drives type list disk.
You can see disk’s listed there. Note down the disk number of your pendrive eg. Disk .
Now type SELECT DISK X (where X is the number you noted down for the pendrive from step 5)
Now type CLEAN.
Now type the following commands by pressing enter after each one.
CREATE PARTITION PRIMARY
SELECT PARTITION 1 (Assuming your pendrive/ USB drive is 1).
ACTIVE
FORMAT FS=NTFS
ASSIGN
EXIT(Now the disk partition program will exit). Now we need to give some more commands.
Now insert the Windows 7 Installation DVD and to your DVD drive.
Here i am assuming DVD drive as G and Pendrive as I.(Change it accordingly).
Now type G:CD BOOT
Now type this command BOOTSECT.EXE/NT60 I: to update your USB drive with bootmgr code.
Finally copy all the contents from the Windows 7 DVD to your Pendrive. Make sure you don’t cause any errors.
Plug / Insert your pendrive to your PC and restart the system.
Now Enter the Bios system accordingly by pressing the key delete.(This may vary some times it will be F2 or F12. It depends on the type of your system. Any how during the start up your system will display which key to press to enter the Bios).
Now select the USB/ Pendrive as the first boot driver.(Set the first boot priority to USB drive.).
Now save the settings in Bios and restart and you will be able to Install Windows 7 using that pendrive.
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