HELP !!! I can't boot to Windows

OK I'm going to tell you about what I did first .
First of all my computer is a custom bulit system a PIII 933mhz .
I had alot of junk on my harddrive so I wanted to format my harddrive .
SO I put in this floppy disk I got from the place that put this PC together . ANd in MS-DOS I typed fdisk ,and and than I choose to delete the primary partation . And than I formatted the harddrive . Using the format c:/s .
And than ( some how) I installed Windows 3.1 .
Everything I think was right I also actived the paratation .
But when I'd boot without the floppy disk all I'd get is a c: promhpt.
ANd when I boot with the start up floppy disk I'd get a windows '98 start up menu .
SO I did everything above over again .
ANd now when I type format c:/s
Its saying it can't format it .
What did I do , Better yet what do I do now to fix it .
I have windows Me I'd like to install on here but I can't figure this out .
HELP!!

1. to run Windows 3.1.
type as follows

C:
cd windows
win

That should load Windows 3.1 if it is installed correctly (you didn't NEED to install it to upgrade though!).

2. cannot format c: again. The most likely cause is that you are sitting on the

C:\

prompt when you tried this. You CANNOT format the drive you are "logged in" to.

type as follows

A:
format c: /s /u

this assumes that you have a boot disk in A: with format.com on it.

For Windows ME (I am not an expert). But if you have a disk that is bootable and loads the drivers for your CD-ROM, it should be a breeze to install. I heard you can get one at Bootdisk.com, I have never gone there.

Good Luck