Plesse help I wanna delete the old administrator that's register on my computer I just bough is a window xp

You have several tutorials available:

How to Reset Recover Change Forgotten Administrator Password in Windows

How to Disable Delete the Administrator Account from Windows 7 Computers

ow to remove system administrator password windows 7

How to remove administrator password in windows XP

For XP administrator password recovery, I have used Windows Password Recovery Tool Ultimate to help me remove password and login my Dell XP laptop again in 5 minutes!

Asus Eee PCs run on the Windows XP SP2 operating system. Accounts in Windows XP SP2 can easily be password-protected, but the same password can just as easily be forgotten.

At moments like this, you'll wish you had chosen a password that is both secure and easy to remember, or kept a record of it in a private place.

The quickest way to get back on the computer is to seek out someone with an administrator account on the computer.

Press "Control" + "Alt" + "Delete" at the same time on the locked screen.

Select "Switch User."

Remember, only an administrator account registered on this computer can unlock the computer.

Type in "administrator" in the user name box.

Type the password that corresponds to the administrator user name in the password box .

Click "OK." The Asus Eee PC is unlocked.

Hope this helps

Users are deleted in User Accounts, or Local Users and Groups. Not in Documents and Settings.

Make sure you are an Administrator, and not trying to delete active login account. Then delete.

SmartKey Windows Password Recovery can reset any Windows password including Domain Administrator (Active Directory) or other user passwords, It also can change passwords and create a new Administrator user account.

Forgot your Windows password? Wanna create a new Administrator account or change Windows password? That's it! With this effective Windows Password Recovery software, you can enjoy quick access to your locked computer. No need to call a technician, no need to re-install anything, and you certainly don't need to reformat. Pretty easy, try it!

http://www.recoverlostpassword.com/products/windowspasswordrecovery.html

Hello Sealiena Cox! How you doin.. well, what i wanna you to do is on the logon screen, do not click on any of those two accounts ok, now press Ctrl+Alt by keepin holdin 'em hit the Delete key twice, you will get another screen, type in user name Administrator, password ummm i dunno about it do have a password on your previous usage if yes then type it otherwise just leave the password blank. once you are in, and found that all files on your old desktop, do this: right-click on My Computer icon that on desktop -> select Manage > left pane navigate to Local users > Users, I need u here to disable any accounts u don't want to use except for the administrator account, to do so Right-click on the user name > select properties then tick that box saying " Account is disabled " > apply > ok and do so for the rest of accounts. DO NOT disable all accounts otherwise you will not able to access your Windows any more. that's not that dangerous but that time you need a computer technician to fix it for you, because it could not be fixed online. Let me know if that helped you in returning back your old desktop. if not then follow up. Thanks

When you used system recovery it is possible that some stuff got missed by pc. Nothing you did since i have seen it many times. You might wanna try reloading windows from scratch but be aware you will loose all the data of off it. This might be only way.while in set up for windows install make sure you delete old partition and then install new fresh copy of windows. You will need you OS XP disk for this. It is very easy to do so just follow the prompts and when it tells you do you wanna install new copy of windows so do and it will give you option to delete old partition and do a format on it. Once this is done just do regular install.Hope this helps.

Make sure VBScript is installed, turn off script blocking in anti-virus and personal firewall software, reregister VBScript, and then install iTunes." Resolution Download and install the latest version of iTunes.
Install the latest VBScript engine from Microsoft for your Windows OS platform Windows 2000 Download and install VBScript version 5.6 for Windows 2000 from Microsoft, and then try installing iTunes or QuickTime again. Windows XP Download and install VBScript version 5.7 for Windows XP from Microsoft, and then try installing iTunes or QuickTime again. Windows Vista No download necessary. The latest VBScripting engine (version 5.7) is already included with Vista. Follow the steps below to register the VBSScript again if you still have this issue in Vista.
Register the VBScript engine again If the latest VBScript engine is already installed, register it again. Note that you must be logged in as administrator or logged in as a user with administrator privileges for the computer to execute these steps.
For Windows 2000 or Windows XP: 1. On the Start menu, click Run.
2. In the "Open" field dialog box, enter the following command and click OK:
regsvr32 vbscript.dll
3. A message should appear stating that the "DllRegisterServer in vbscript.dll succeeded."
4. Click OK and try installing iTunes or QuickTime again.

I've done this before for a few clients of mine. Windows 2000 allows this solution to work, won't work on windows xp.

Try it: http://www.petri.co.il/forgot_administrator_password.htm#1

You'll need to download the floppies or the CD images and use them to create a bootable media.

Use the administrator default user to login press CTRL,ALT and DELETE type administrator for the user and hit enter