i want my computer to auto login into windows after a client disconnects from remote desktop connection. is that possible?

You have to log in to the remote pc with a user name that has a password. So unless you have only one account that has no password and also the hidden administrator account you probably can't do it. Here is what I use to do, I had only one account on server machine without a password so that when I turn on the machine it would boot windows without clicking anything. Then when on client machine I would open remote desktop and type in the address, I would sign in with the hidden administrator account, do what I had to do, then go to start>control panel>windows security, that would bring up the task manager once there I would press restart in the top menu. It would restart with the user account, just as if you were there pressing the power button to start it. You can go to all this trouble or you can get RealVNC. Works great and you don't have to sign in to a different account, you can connect with the account that is running on the server already. Very simple.