I suggest you try hard to remember your password! If you really can not reset your windows administrator password, I recommend Windows Password Seeker, passwordseeker.com
I had removed Windows password with the tool successfully on my computer. Hope it helps! You simply do as follows:
Step1, download Windows Password Seeker.
Step2. Remove your Windows Password with the tool.
If having some questions, you can read carefully at:
http://www.passwordseeker.com/howtouse.html