because that would normally be the error message when the drive has been wiped clean; however, I'm wondering if you didn't give just the command at your bootdisk to FORMAT without designating the C: drive.....if so, then you only formatted the floppy disk and erased the information for it. So when you reboot with the bootdisk, that's the message you will receive since the computer normally boots to the A: drive first, and if it sees there is a disk in the drive, it is empty and can't find an operating system on it.
If you remove the bootdisk, and reboot, does it still give you that message or do you get to the desktop?
In any event, you now need a bootdisk......so go here to download a new one for the version windows you have. http://www.bootdisk.com or http://www.bootdisk.de and when you get the .exe file downloaded, put a clean formatted floppy disk in the drive, and click the .exe file. It will automatically create the bootdisk for you (takes about ten minutes) and a dos screen will appear to show you the progress of it being created.
Boot up with the bootdisk, and if the C: drive is still working and you want to format it, type
FORMAT C: /S (unless you are using ME...then leave the /S off) and press Enter.
If your C: drive is empty, then type SYS C: instead and press Enter.
When it's done, reboot again with the bootdisk, enable cdrom support if you are asked. Then change to the R: drive letter (that's the default temporary drive for a downloaded bootdisk for your cdrom) and put in your windows cd and type SETUP.......the install will start.
You will probably need your hardware install cd's or floppy disks because windows will either install the drivers it has in its database or it won't have the right drivers at all.
I tried to reformat my partition through dos on windows 98 because it would only start in dos mode. I was then prompted to reboot. Then I recieved the error "Missing Operating System". In addition, my boot disk will not work. Is there anything I can do? Please Please help!!!!!!!!!!!!!!!!!