How To Change Log in screen (windows 7)

How to change log in screen change in you windows 7 operating system...?

Solve it now.. Its too easy.. So if u want to change your log in screen then lets start..

At First  Download This File

Now Extract it and open folder.

Click InstallTakeOwnership and install this file..

Then Press Yes..

Now Open Win7LogBackgroundChanger...

After open you see that.. Its my computer log in screen..
You choose any image to to your hard drive and apply...

 I choose photo from my hard drive and apply...

After apply press= Ctrl+Alt+Del
And see magic...