OS on a Floppy

by Tom Mullaly on September 28, 2003

MenuetOS is a nifty little Operating System that runs on a floppy disk. Written entirely in x86 Assembly language, it supports a GUI and even comes with a web and MP3 server!

The list of features includes:

  • pre-emptive multitasking, multithreading, ring-3 protection
  • graphical UI with 16 M colours up to 1280×1024
  • faster programming language than in Win, Linux, ..
  • ide: editor/compiler for assembly kernel and applications
  • kernel and application sources included (GPL)
  • TCP/IP stack with PPP & Ethernet drivers
  • http/mp3/email servers, 3D maze
  • free-form, skinnable application windows
  • hard real-time data fetch
  • fits in a single floppy !

There are many small little apps that you can also download to make this OS a little more fun!

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{ 10 comments… read them below or add one }



Shawn Quinn

how do transfer the .iso download to a floppy in such a way that it fits and boots.


I have found that using the “rawwrite” program to write the os to a floppy did not work! It got to 26% and stopped. I got some error and it never finished. If it worked It would have been great!


ur gay it works, use magiciso


well use rawwrite

then go to porperties of floppy drive
then run check for errors
after then
the floppy will run OS

i tried it


When I try to boot the MenuetOS
it allways writes to the screen
“Long mode unaviable” and the boot
process stops.Whats the problem?


Long mode unavailable error shows when you boot the 64bit version of menuetOS on a PC with a 32bit processor. Simply download the latest 32bit version and write the image to floppy disk or cd as described above. 32bit version is not as up to date as the 64bit one but it works and is free.


i have extract and copy the iso to floppy,but is not enaugh space,maybe it couses by the formated floppy in windows…

so any formated software that smaller than windows have?


I have Intel CPU 1.20 GHz ,1 GB RAM and AMI BIOS.I tried to boot MenuetOS32 but after loading from floppy the system “freezes down”.


i dont know what it is i should install it.

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