How to reset hp probook 4310s embeded security password

If your hp computer is installed with Windows 7, following the video to learn how to reset hp computer security password with Windows 7 Password Genius
https://www.youtube.com/watch?v=I5HzG7fb-Wg
If your hp computer is installed with Windows 8, and the password is your only admin password, refer to hp computer Windows 8 admin password reset.

HP security password is generally recognized as bios password and user password.

BIOS password is set to protect BIOS settings changing. And when we want to enter computer, we will first pass through BIOS. So on the other hand, BIOS password give computer one more security protection. Turn to this post learning how to reset HP bios password.
HP Commercial Notebook BIOS Password Creation/Setup/Reset

About user password, it is usually used to lock Windows system. If you forgot it, Windows Password Genius will help you to reset it.
If you want to know reset HP bios and administrator password together, go to this passage.
HP laptop BIOS and administrator password reset

Well, forgot windows password ?Which system do you use?

On Windows XP, try this:
Boot computer and press Ctrl+Alt+Delete twice when you See Windows welcome screen / login screen. It'll show classic login box. Now type "Administrator" (without quotes) in username field and leave password field blank, press Enter and you should be able to login Windows.
Now you can reset your account password from "Control Panel -> User Accounts".

If that doesn't or you use Windows 7 or Vista, try this:
1. Enter a computer that can link to Internet. Download "Windows Password Reset " and install the software on that computer.
2. Run the software and create windows password reset disk by follow the instructions.
3. Eject the created CD/DVD and insert it into the locked computer.
4. Reboot the locked computer (it's necessary for you to change your locked computer's BIOS setting to make it boot from CD drive) and then follow the instructions to reset Windows account password.
5. Now login Windows and set a new password.

Good post for HP users to learn many useful methods about Windows password reset. There is another helpful method that I have used to reset HP security password. See more on here.

How to Enter Access Get into BIOS on HP

Here's how to use Windows Password Recovery Standard to reset hp without a password.
Step1: Get Windows Password Recovery Standard from: http://www.recoverlostpassword.com/products/windowspasswordrecovery.html.
Step2: Install and launch it to any accessible computer.
Step3: Use a blank and writable CD/DVD to burn Windows password reset disk with the tool.
Step4: Boot the locked computer from CD/DVD.
Step5: Start to perform Windows password reset with the burned disk.
Step6: Reboot computer and login to the machine without password.
(Note: Before starting password reset on Windows process with Windows Password Recovery Standard, you need to find another accessible computer and an empty CD/DVD.)