Teach you how to set the password for win7

. It is believed that many passwords will be set, but some people will not. I seem to have been in contact with Win7 for half a year before I have the concept of setting a password, which is entirely due to my choice.
Note: After setting the password for win7, please remember that after forgetting, it seems that only the hard disk is replaced, it is not a small amount. I also want to know how to use the software to unlock the password for students who share the tutorial in this edition.
First enter the Control Panel>> User Account>>Set the password (because I have already set the password, so it should be different from yours)
Note again: Please set a simple password, don't be too responsible, Forgetting your password is a terrible thing.