No password Win7 How to go directly into the system

Win7 must click on the username to enter the system instead of entering it directly. and the current use of the account does not set the password, this problem makes me very headache, in the end can directly enter the system?

First step: In the Start menu search box input

"Netplwiz" Press ENTER to open the Advanced user Control Panel.

Step two: In the Advanced user Control Panel, select the currently used username in the list of native users, and then cancel the check on the "To use this computer, user must enter username and password (E)" Item.

Step three: After the setup is complete, the system will pop up the window to enter the default login system username and password, do not enter any password, click OK to complete. Restart your computer again, and you will find that you are automatically able to enter the system normally.