3 Admin accounts-delete 2 for safety ??

Hi All,
Ive just discovered I have 3 Admin Accounts on my laptop.I have been following MG`s steps for a safer machine,I want to delete the other 2 admain.acc.
What is a bit of a concern is that one looks like a 50 digit number..Is this something to be concerned about or not.
How would I go about this??

Im paranoid about being "owned...."

Thanks

 

NOTE: You must be logged on as an administrator or a member of the Administrators group to use User Accounts in Control Panel. The computer administrator account is intended for someone who can make systemwide changes to the computer, install programs, and access all files on the computer. Only a user with computer administrator account has full access to other user accounts on the computer. This user can create, modify and/or delete user accounts on the computer

Click Appropriate Links Here:

Microsoft Windows XP - Delete a user account
To delete a user account using Windows 2000
To delete a user account using Windows Server 2003
If you use Windows 98, or Windows 95 with Internet Explorer 4.0

[Warning: Be sure to Back Up Your Registry and/or Create a System Restore Point - First!]

Windows 98, Windows 98 SE, and Windows 2000 do not support the "System Restore" feature

 

Thanks,got it...