Tracing unauthorized login attempts in WinXP

If you are set password in your desktop/laptop in ur home/office to prevent others from ur family/office entering into ur pc to view or steal data,how do u know is anyone trying to login into ur pc
In this tutorial i will tell ,how you can trace the unauthorized login attempts in your computer or in ur office computer(WinXP)

First go the the
my computer >right click >
click on Manage
and then go System tools >
Event viewer >
Security 

To Enable Audit for "Logon Attempts "
Go to Run and type "Gpedit.msc" and follow the steps


after you typed gpedit.msc and click ok a window like this will come

Go to left hand side tab , Navigate to
Local Computer Policy >
Computer Configuration >
windows Settings>
Secuity Settings>
Local policies >
Audit Logon Events

and you will see something like this and then you need to select "Adudit Policy Change " and select both "Sucess" and "Failure" Option.
i mean check the box

Now Log off your computer and Try Logging with Wrong Passwords ,then login with correct Password .

After login now Again go to
My Computer> right click
Manage >
Event Viewer >
Security

to see the Logs .

Now you can see the login attempts log

hope this tutorial will helps you,thanks for reading