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Bootable usb pendrive using cmd

Creating a usb pendrive using command prompt is not hard, it is one of the most common ways to create a bootable usb.

      This method does not work if your operating sistem is windows xp or windows 8 , you cannot select the primary partition in comand prompt.

       You just need to follow these simple steps:

  1. First step is to obtain the windows files from somewhere and save them to a folder in your pc. You can rip a windows dvd , or if you have the iso image file you can open it with magic disc or daemon tools or even winrar , and you need to copy the whole content to a folder anywhere in your pc , you just need to make sure you know where it is located.
  2. Make sure your usb stick is inserted, go to start search cmd , right click the  file and select run as administrator. The command prompt will appear, now you need to write the following comands:
  3. diskpart→list disk→select disk 1(chose  the usb device, you will recognize it by its size)→clean(this will erase the usb)→create partition primary→select partition 1→active→format fs=ntfs(this will format the usb drive and will take 10-15 minutes)→Untitled 5
  4. After the format is done you have to continue writting  in command promt :  →assign(now you will notice that the usb drive changed its letter to (H): or (G))→exit(this command will exit the disk part function)
  5. Now you have to write the path to the executable file in your windows saved folder , make sure that in your windows folder you have the boot folder with the bootsect executable file.Untitled 8
  6. In my case the command goes like this:   E:→cd win 7 sp1→

           →cd boot→bootsect.exe/nt60 h:(h is the letter of the usb drive ,this comand will update the boot core)→exit (this will exit command prompt).
Untitled 6

  1. Now you have to copy all the files in the windows folder to your usb drive. Untitled 7
  2. ALL DONE. You can now restart your pc and boot from the usb hard drive.

199 Comments

  1. in the final step i am getting the error that
    could not map drive patitions to the associated volume device objects: access is denied.
    does anybody has any solution for this?

  2. You should make sure you are running the command prompt as an elevated window (i.e. run it as administration).

  3. Please l want some one to assist me in making a pendrive bootable using the command prompt and also assisting me in using the command prompt in my daily usage of computer. THANKS

  4. You should make sure you are running the command prompt as an elevated window (i.e. run it as administration).

    Even after running cmd as admin..?

  5. “format quick fs=ntfs” works and it lasts around 1min (16gb usb).

  6. first copy window on your pc .
    then open cmd type
    diskpart
    listdisk
    select disk 1 or 2
    clean
    create partition primary
    select partition 1
    active
    format fs=fat32 quick
    assign
    exit…
    now copy all window file into your pendrive..
    thats all

  7. commant for flash drive

  8. list disk show only show online but not show my hp pendrive why pendrive also ntfs format

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