How to change window 7/XP passwords

How to change window 7/XP passwords:-

1.Go to start menu/desktop
2 Right click on computer icon
3. Here u  see an manage tab,double click on it
4.After that a window is open called computer management
5. Double click on the LOCAL USERS AND GROUPS
6.Here u see two tab named as -1.users 2. GROUP
7.Double click on the USERS, u see acoounts of pc such as--administrator,guest,student
8.u can change password  of any account -just right click on any account name
9. u find tabs like set pssword/delete any account etc.
10 TO change password click on set password-
11. window ask for proceed -just proceed
12.another window come for change password.
13.use this knowledge wisely