Change Administrator password in windows7

start - > run - > lusrmgr.msc.

It will open one window.

You will see two folder.

1) user

2) Groups.

here select user. when you select user , it will show its users.

in that you find one user as "administrator". right click on it,

you find one option as "Set Password".

In that you can change password directly. and then press OK!

thats it..!!!