Step 1: The script...
Than save it as a bat file like cmd.bat like this Save>All files>cmd.bat
Step 2: What is next!
once you double-click it you will be able to type in a code like this:
net user sammy /ADD
Step 3: Perfect till now
If he or she did not notice good COZ now you can say: net localgroup in the dos file
And it should give you the encription of your school and other details
and many other strange codes
Step 4: Than make you an Admin user easy as a pie!
Step 5: You are done hackin
net user sammy /DELETE