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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.


  1. i did it ,thanx very much …..

    • tried it now but its not working… giving me difficulty after ”leaving diskpart”… please what do i do? thanks

      • open cmd in adminstrater mode

      • Can I know wer you are getting problem

  2. thank you sir, i am very thankful to it

  3. Can i use one pendrive to multi os installation

    • Yes u can

  4. Herrrh, u guys are awesome! !! U made me feel am genius! Tanx soo much …

  5. how i can make a multiple bootable pendrive using cmd…..

  6. I would recommend writing format fs=ntfs first and then writing active. This could save you a lot of time.

    • Note: – Write “format fs=ntfs quick”. This will format your pen drive very fast.

  7. Getting problem.. computer is showing bootmanager not found when I try to boot using pen drive

  8. This work’s. Thank you

  9. Hi,

    I’m trying to create a thumb drive that will boot to DOS (freedos, doesnt matter) on a modern laptop. Do you have any articles that outline creating a bootable DOS thumb drive? I’ve tried EVERYTHING including using Rufus and downloadable DOS bootable ISO’s … so far no love.

    Thank you

  10. thnx a lot .. it is really helpful.

  11. Thank You very much :) It helps a lot ;)

  12. hey after leaving diskpart i’m triying to update the bootcode bt it does nt work. it shows-
    could not map drive partitions to the associated volume device objects:
    access is denied.
    plz tell me what to do.

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