I am thinking of creating my own OS. I downloaded bochs for a test machine, and now I need a 'floppy' to boot from (it boots from .img files). I need a way to create bootable disk images. I have neither physical floppies or a floppy drive. My requirements are:

I need a way to create a bootable disk image.

I need a way to manipulate files on the 'disk'.

The best solution I found was VFD, but I have Windows 7 64-bit, and VFD is explicitly designed to work only on 32-bit hardware. I searched high and low on Google and I couldn't find anything both free and useful.

Is there a 64 bit solution?

2 Answers 2


You should be able to use UltraISO. While it is not free, IIRC, the limits improsed on the trial version still allows making floppy images.

  • I'll delete this answer if my memory is wrong. Also, I may be getting confused with PowerISO. I have used both in the past, but it was a long time ago.
    – paradroid
    Oct 15, 2011 at 21:49
  • Is it a limited-time trial? I couldn't find any info on the trial version. I do have a blank, unformatted floppy image created by bochs. Oct 15, 2011 at 22:45
  • @kendfrey: IIRC, it is a feature-limited trial and not time-limited, where you can only make images of up to a certain (small) size.
    – paradroid
    Oct 15, 2011 at 22:52
  • OK, thanks, I got a formatted bootable floppy disk image. Oct 15, 2011 at 23:22

It's always a good idea to read user manuals. Chapter 8 of the user manual for Bochs points one to the Bochs WWW site where one can find listed two Win32 ports of MTOOLS, for starters.

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