If you have a lisenced installation disk you have two simple options:
1. Install it in a virtual machine through virtualbox. This makes it so you can (and must) run both systems at the same time, but switching is faster.
2. Back up ubuntu onto another storage device, such as a external hard drive. Then install windows, and make sure to wipe the system in the process. Then install ubuntu over windows, rewriting the mbr to use the GRUB bootloader. You can replace your files from the backup.
No.
Boot from the Windows XP CD and let it reformat the drive. WIndows XP cannot use the native Ubuntu filesystem, so you'll need to reformat the drive anyway and you might as well do it using the XP install disc.
Windows XP.
You could make a separate partition for Ubuntu, so creating a dual-boot. Or try the easiest method of using WUBI to install Ubuntu as a Windows file. This allows you to use Ubuntu without affecting XP or the hard-drive. Type WUBI in a browser and follow the instructions.
You cannot install Windows ME over Windows XP from within XP. If you must (for whatever reason) install Windows ME, you will need to boot from the CD.
Yes, but why would you want to? GoS is a derivative of Ubuntu; just install the latest version of Ubuntu on it and welcome to the world of free software. It is what I use and I can do anything you can do with XP Pro, except catch the viruses and spy-ware.
How to install the IIS on Windows XP
Yes, as long as the hardware meets XP's minimum requirements.
Yes, as long as the hardware meets XP's minimum requirements.
Download a self installing boot from CD-ROM ISO Windows XP professional. SP3 Which will already have the key installed and everything. So as a computer starting up find the proper f key. To select where to boot from and boot from your CD-ROM and it will install XP over the Ubuntu. You're going to reach a point where you're going to look at your petitions. As you remember with Ubuntu you have to set a couple of extra partitions you can delete all of them and pursue with your installation from there and you'll have your Windows XP back on your computer.
system -> admin -> users and groups. Or, since this question is in the "Windows XP" category, are you asking how to create a new user on Ubuntu from within Windows XP?
If you chose the option to resize the hard drive to make room for Ubuntu, there will an entry for Windows XP on a boot menu when you start the computer. If you chose to use the entire disk, Windows XP was erased, and recovery is probably not possible.