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How To Boot And Install Windows 7 From USB Flash Drive
If you want to Install OS in your system, but do not want to burn into a DVD, here is how you can create a boot-able USB drive(PENDRIVE) to install Windows 7 on your system. Format USB Flash Drive to NTFS Format For Windows 7:
Open your Windows Explorer, you should see the USB storage drive in the Device With Removable Storage. Right click and select Format. Select NTFS from the drop down bar. Click Start.
On the Start menu, navigate to the command prompt entry. Right-click and select Run as administrator.
Creating bootable USB flash drive
if u have Windows 7/XP ISO (32-bit/64-bit) image file means Extract the files to a folder using power ISO or Magic disk software.
(you can name the folder any name you want, but for illustration purpose, I name it win7) in your desktop.
In your command prompt, cd to the windows 7 folder.
change directory to the F: then
cd windows/win7 (Change the destination to the folder that you have extracted)
bootsect /nt60 L: (L is the drive latter of your USB drive )
Now, copy all the files from the Win7 folder to the USB flash drive.
Reboot the computer. Remember to change the first boot device to your USB drive in the BIOS.
You should be able to install Windows 7 from your USB flash drive now.
using that flash drive you can install more than one system. so avoid burn using DVD SAVE MONEY....
For Windows XP,:
(For Win XP only. in your Windows, go to Control panel -> system -> hardware -> Device manager.
Under the disk drives section, right click on the USB storage drive and select Properties.
Go to the Policies tab, select optimize for performance. Click OK.
Open your Windows Explorer, you should see the USB storage drive in the inventory. Right click and select Format. Select NTFS from the drop down bar. Click Start.
Already having windows 7/XP iso (image) file means , Extract the files to your desktop.
Open a command prompt (Start –> Program –> Accessories –> Command Prompt).
**for example i use the file name as MBRWiz2.o/ (you can name the folder any name you want)
Record the USB flash drive disk number
Make the USB drive active.
mbrwiz /disk=X /active=1
I Hope it is very use full for you.. if have any suggestions make it..