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Adam LeinssFlag for United States of America

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Formatting a 1.44MB floppy as 720KB?

Hi guys.

I'm teaching an operating systems class this fall and I thought it would be cool to run Windows 1.0 and other older Windows operating systems in a VMware box.  Anyways, I installed DOS 7.0 (file system is FAT16) and installed Windows 1.01 on top of that.  Booted it and Windows completely locked up at the blue Microsoft logo screen.  Was going to try DOS 3.3 (I believe that is the DOS version that came with it) and the disk image I have (720KB) refuses to be written to a 1.44 MB floppy.  How can I do this?  I would like to boot from the disk so I can install DOS 3.3 if possible.

Has anyone tried to install Windows 1.0/2.0/3.0 in VMware?
Avatar of CW-Coleman
CW-Coleman

You should be able to format the 3.5 inch diskete as a 720k.  The DOS 7.0 you installed should be able to do it.  From the C:\Prompt, type in Format /Help and see if you can see the size switch and numbers.
Command will look something like:
       format a: /size:720

CW
wasting time teaching windows in VMware box.  Teach kids real windows as it started.  Download full DOS 3.3 disk from http://oldfiles.org.uk/powerload/ or http://www.bootdisk.com/ was first REAL stable DOS version.
Windows 3.11 was first stable windows.  If you want to teach kids real history, install DOS 3.3 and win 3.11 on 200 MB drive, you be amazed how fast and easy it work on 486-66 computer with 32 MB ram -- faster than XP!
Avatar of war1
Greetings, aleinss!

You cannot format a floppy disk to 720MB in Windows XP
http://support.microsoft.com/kb/q302113/

You need a double density media to format in double density format
http://www.pcguide.com/ts/x/comp/fdd/formatTrack0-c.html

Cheers!
DOS 7.0 came with Windows 95 first.             I wonder if you can connect a C64 datasette to VMWare...     ;-)
if you want to do it easily, install win95 or win98.
then tape the hole of the floppy, and you have a 720 k floppy!
Avatar of Adam Leinss

ASKER

Thanks guys, according to the links posted by war1 this isn't possible.  Is there a way of "virtualzing" A: with software?  I have the DOS 3.3 disks in IMA (WinImage) format.
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Gary Case
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This is just a little pet project, nothing serious scrathcyboy.  I looked at the sizes of the images and one was 1.44 MB and the rest were 360KB.  Those must be the 5.25 disks which I certainly don't have, but it looks like the 1.44 MB image will work fine.  Curiously now, I booted with DOS 3.3 and it shows the partition I made with gdisk as a non-DOS partition and has no option to delete it.  However, if I boot with a DOS 7.0 disk it does see it as a DOS partition?  Weird!

Thanks for the help guys.