إمشي معايا خطوة بخطوة لأني مجربها وشغالة عنبStep by Step , accomplishin sucessful method (working 100 %)First, you’ll need the DiskPart utility on the system you will use to prep the thumb drive. This is a free disk partitioning utility that is likely already installed on your Windows system. If not, you can download DiskPart here..From C -> Windows -> System32 -> cmd (run as adminstrator -Strongly Recommended-)
[OR] run -> CMD -> diskpartThen run the list disk command to check the status of your drive.
Now run select disk 1 where the "1" is actually the corresponding number of your USB drive.Run clean. (Assigned by its Volume)Once the thumb drive is clean, you can run create partition primary.Now make the partition active by entering activeThen you need to set up the file system as Fat32 by running format fs=fat32 quick (quick, of course, specifies that you want to perform a quick format to speed up the process).Entering the assign command gives the USB drive a drive letter, making it easy to access from Windows ExplorerThen you can copy everything from the Windows 7 installation DVD onto the USB key (a simple drag and drop will do).Type exit in diskpart , that will go back to command windowRun the following command (Where D:\ is the Windows 7 DVD and E: is your USB Stick)D:\boot\bootsect /nt60 E: /mbr
or
IN Command Prompt .Type the following command now:
D: CD BOOT and hit enter.Where “D” is your DVD drive letter Source.
CD BOOT and hit enter to see the below message.
7. Type another command given below to update the USB drive with BOOTMGR compatible code.
BOOTSECT.EXE /NT60 H:
Where “H” is your USB drive letter. Once you enter the above command you will see the below message.
- Copy your Windows 7/Vista DVD contents to the USB flash drive.
now go to ur Device , get access to bios and change its boot priority to USB disk then plug in yr flash memory then Repoot Now you can insert the thumb drive into the system you want to install Windows 7 onto and boot the system. The installation will now proceed as usual—but faster.