how to uninstall ubuntu 8.04

Install the Windows CD. And Ubuntu will get killed.
Peter

peter i tried that but after the initialization its displays an error message "disk invalid or disk error"

So I guess, your Windows CD is the problem. Try the following:

1: I'm not mad but clean the disc by using water. Wash it and try again.

2: Do you have still Ubuntu? If the answer will be yes, maybe you can format all the filesystems and then you can try to install Windows again. But I don't know, how this works. Maybe you've to ask a new question regarding this.

Hope you can solve the problem.
Peter

Wash the cd with water!!! Lol, you're right, it does sound mad but also once its properly dried with something soft then it might work better i suppose! lol

Obviously avoid water anywhere near your machine unless you're making a proper water cooled system like my crazy neighbour! lol

Good luck and regards from
Tom :)

Perhaps try doing a proper install of Ubuntu as part of a dual-boot with a broken Windows.

https://help.ubuntu.com/community/BootFromCD

https://help.ubuntu.com/community/WindowsDualBoot

In the process you might either gain some ideas of how to fix your Windows side or else find the Windows has been fixed just by the install process fixing your mbr and providing a much more decent boot-loader than the wobbly Windows one. Hopefully also this will help you recover data from the Wubi, maybe, if it hasn't been wiped already.

Good luck and regards from
Tom :)

*llllllllllllllllllllllllllllllllllllllllllllllllll

I had this problem. The Ubuntu disc didn't load anymore and I weashed it. And it worked again *lll.
Peter

There are really 2 crucial questions we should have started with

1. What do you want to end up with on your system? A dual-boot with Windows and Ubuntu both working or just Windows or what?

2. Are you keen to try recovering data? (Hopefully not as starting by reformatting or reinstalling is unlikely to have helped this)

3. Are you uninstalling Ubuntu because you're unhappy with it? If so maybe we could help fix those problems?

Thanks, good luck and regards from
Tom :)

+ Tell us more about your problem with the Windows CD ; because when windows doesn't recognize the File System , the installation program considers it as unallocated .
+ What king of files you have lost , if it was windows files , there is no problem , because you can install it again, but if it was Your own files , there is a real problem.

Precise more.

The standard ext3 and other formats that linux prefers make the space invisible to Windows which continues to refuse to read our spaces even though they've mostly been around for quite a while. On an installed system it's possible to install special little utilities to read our stuff but these are never included in the standard install. Presumably a marketing ploy rather than a lack of skills at microsquish. Windows might not recognise the filesystem formats because it's deliberately blind to them rather than just some hard-drive surface errors.

It does sound more like a Cd error tho.

I still think that using these guides where possible (obviously there's some things that just can't be done but later sections should still be possible) will probably set things up to fix the broken Windows

https://help.ubuntu.com/community/BootFromCD

https://help.ubuntu.com/community/WindowsDualBoot

Good luck and regards from
Tom :)

try to load the Live CD and delete all partitions you don't need , apply the changes without installing ubuntu (just use GParted). Then restart the PC and enter a correct windows CD.

If you want help choosing Partitions you might not need or want suggesions of which ones you might be able to resize then please copy the text info from the bottom pane of gparted into here and we might be able to help :)

no i dont have any problem with my windows disc.. the problem is related with the partitions.. windows installation is unable to detect the kind of partition. i just want to have windows alone for now (not because i'm not happy with ubuntu but b'coz i wanna use some programs designed specially for windows)..
  i have downloaded a zipped archive of gparted but i do not know how to install and work with gparted,.. so can u people help me out with that also?

Don't worry about this. It's all a bit new and weird for you maybe but it was like that for us too: not so long ago for some of us ;)

GPartEd is a standard app on many different distros run straight from their Cd. You wont need to install gparted to Ubuntu, Wolvix, sliTaz or others. Use whichever distro is easiest for you to get hold of, lets imagine that's the Ubuntu Cd. Just put the Ubuntu Cd in the cd/dvd-drive and reboot the machine. This should get you to a menu with the top, default, option being "Try Ubuntu without changes to my machine", if you don't get that menu then this guide should help
https://help.ubuntu.com/community/BootFromCD

This "Try Ubuntu ..." option should get you to a working desktop and from there you'll find gparted by going up to the top taskbar and click on

System - Administration - Partition Editor

When you've opened it you can just close it again without doing anything. I usually do this just to make sure i can back out of a place easily. Notice that in gparted it has an "Apply" button so just don't press that one ever until you are sure you really do want to apply all the changes you've setup. This is great because if you don't want to setup processes but accidentally do then you can just close the app without pressing "Apply" and you should be safe, right? Also it's got an "Undo" button but this doesn't work after you've hit the "Apply" button, it only works before that. Gparted is a very powerful tool so it's wise to be wary. It can make everything go horribly wrong very fast but it does have a couple of safety features, the "Apply" button and before that the "Undo" button, to minimise the chance of doing something completely by accident. At the moment all we are really interested in is planning how to approach setting up your partition. Once you've agreed what to do then you can do the actual process another time :) Just let us know the info that's in the bottom half of gparted (the text based half) so we can help you plan what to do ;)

Good luck with this part and regards from
Tom :)

Hey dude,

 Here is the step by step procedure:

Follow This procedure.

1. Log on to Windows XP and right click on My Computer and click on Manage
2. Then on the left side of the Manage Window,select Disk Management.
3. Now just right click on the partition in which you installed Ubuntu and click on Delete.Now your ubuntu is uninstalled.
4. Now when you reboot you won't be able to go to Windows as you will get an Error for the grub.
5. Now just insert the Windows CD and change the primary boot settings to CD -Rom.Now you will notice that your pc boots with the CD.
6. Let all the application load.Then you will be asked what you want to do.Then hit the R button on the Keyboard.That will take you to a page similar to a Command Prompt.
7. There you will find a line like this::

    Which windows do you want to choose?
1. C:/Windows

Then type 1 and press Enter.
YOU WILL BE ASKED FOR YOU ADMINISTRATOR'S PASSWORD.IF YOU DID GIVE AN ADMINISTRATOR PASSWORD WHILE INSTALLING WINDOWS THEN TYPE IT OTHERWISE LEAVE IT BLANK AND HIT ENTER
8. Now Just type FIXMBR
(Note:Type exactly as I typed in the 8th step.)
9. Now your Ubuntu is successfully un-installed.Just remove the Windows CD and reboot.

This should fix your problem.

Good Luck.

Hi :)

Just wondered if you have solved this problem yet or are you still having troubles? If you still need help then try re-posting the question in here when you are ready to try working through any suggestions
https://answers.launchpad.net/ubuntu/+addquestion

or else post the question on a more general linux forum such as
http://www.linuxquestions.org

I hope all is going well
Good luck and regards from
Tom :)

hello at last i found the answer.. simply press F2 while booting.. and change the disk mode from enhanced to compatabile and then just simply reinstall windows from the windows disk..
  anyways a big thanks for u all for helping me to solve my problem.. thanks a lot dear friends.. and the ubuntu forum.

Brilliant, nicely done :))) Thanks for getting back to us with that :)
Congrats and regards from
Tom :)