Deleting Ubuntu 7.04 from my pc.

Can you log into windows
If so goto disk manager and delete the partion .
To get there you right click on my computer icon and selet manage then select Disk management look for it and right click on it and delet it then you should be able to see all the disk back in windows Good Luck .

And after the procedure described by Glenn, you can remove grub booting the windows installation CD, opening the rescue console (I don't remember the right name), and issuing the command "fdisk /mbr". This will restore thw originale windows moot manager and will allow to boot straight into windows.

Ok I deleted the partition however windows will not boot. im on a different pc right now.

How can i obtain a windows installation cd?

Buy it (legal) o download it (illegal)
You can also use an ms-dos bootable floppy disk, or an older windows installation cd (i.e.: win98, win2000, ecc.).
Another way could be to download a boot image from here: http://www.bootdisk.com/

You can solve this MISTAKE by "Ranish Partition Manager 2.40"
http://www.ranish.com/part/

If I was you: I DELETE windos, not the lovely Linux!

solve 1: with RANISH you load back into the MBR the delault IPL
  with the cursor you move to the first line (0 Master Boot Record) and
  on the lower right section you can find the IPL type:
  you can set it to the "standard" or similar
  and then you save the canges with "F2"

solve 2 with DOS's fdisk you load back into the MBR the delault IPL:
  you boot from dos and "fdisk /mbr"

solve 3
  http://www.sysresccd.org/Download

all of the solve is windows independent, windows is a *hit

This is what came up when i booted my pc.

GRUB Loading,
Error 17...

then it would stay there. I put the ubuntu cd back in, installed it ( thinking to dual boot again, however windows is gone.

OK i got over the idea that ALL!!!!!! of my stuff is gone. and im trying to get used to ubuntu. but it seems like its INCOMPATIBLE WITH EVERYTHING. My wireless network card dose not work.. anything i download is either in error or opens in a way im unfamiliar with.

Its not that linux is bad im just not used to it.

is there any way to still recover windows?

This is what came up when i booted my pc.

GRUB Loading,
Error 17...

then it would stay there. I put the ubuntu cd back in, installed it ( thinking to dual boot again, however windows is gone.

OK i got over the idea that ALL!!!!!! of my stuff is gone. and im trying to get used to ubuntu. but it seems like its INCOMPATIBLE WITH EVERYTHING. My wireless network card dose not work.. anything i download is either in error or opens in a way im unfamiliar with.

Its not that linux is bad im just not used to it.

is there any way to still recover windows?

If you delete windows AND YOU ***NOT WIRITE*** to the space was your DATA.

Only when you do nothing after deleteing the windows's partiton!!!!!!!!

I use minimum 2 OS / PC. I never delete anything.

You are not enough aware!!!

If you don't know what you do.... -> DATA LOSS
...soon do nothing!!!!!!! and watchfully, watchfully, watchfully, watchfully, watchfully...

This is place for asking and answering questions, not for such discussions and flamewars.

Dear kudo!

If I were you: I boot my damaged pc with a emergency boot CD (live CD)
and I:

-check the partition table
-mount filesystems in read only mode and create backups from important files
-check all the filesystems
-try to make bootable one operating system on the damaged PC

in most cases FDISK /MBR (from FreeDOS or M$-DOS) makes bootable an XP (
installed to the first hard disk,
to a primary partition,
and it's boot flag is on)
(This kills GRUB from MBR, or any boot manager)

I suggest you: please call a GURU or SYSTEM ADMINISTRATOR for recovery of your PC.

Thanks for all the help to everybody, and im sorry if i somehow offended some of you. (though im not sure how I did it xD)

 I should of had asked some people about personal experiences with changing OSs.

cya =D

http://www.gnu.org/software/grub/manual/grub.html#Troubleshooting

"17 : Cannot mount selected partition
    This error is returned if the partition requested exists, but the filesystem type cannot be recognized by GRUB."

https://wiki.ubuntu.com/WubiGuide

Hmm, I must analyze this.

I beware from wubi. I dont't think that is safe. Only one resson can safe a similar thing: a real VIRTUAL MACHINE.
When Wubi "starts" Ubuntu in native mode: my opinion is Wubi is dangerous.

I appreciate all the time you guys, I have re installed windows xp.

thanks again for all the help. and sorry for leaving Linux, its actually quite nice. Im just not used to it.