There are lots of ways to reset Windows 7 admin password. You can have a comparison among them.
Method 1: Use another admin account
Windows 7 system allows you to create more than one admin account. You can use an account which has administrator privilege to remove another accounts' password. But if you have only one admin account on your laptop, you should pass this method.
Step 1. Login HP laptop with accessible admin account.
Step 2. Click Start button, type "lusrmgr.msc" in the search box and hit Enter key.
Step 3. On the "Local Users and Groups" window, double-click Users folder, all accounts on your laptop will be listed.
Step 4. Right-click an account and select "Set Password" to reset its password.
Method 2: Use password reset disk
If you have a password reset disk. When you forgot Windows 7 password, you can use it to reset Windows 7 password in minutes. Input a incorrect password on the login screen, the laptop will display a message that the password is wrong, click OK and return to login screen, you'll find that there is a "Reset password" link below the password box, click that link and follow the wizard to reset password.
Method 3: Use third party software
If you don't have a password reset disk or accessible admin account, there's also another choice for you - Windows Password Buster. It can reset both admin and user passwords on any computer running Windows 7.
What you need is just a USB flash drive or a blank CD/DVD. Launch the program to burn a bootable CD/DVD/USB, then boot the laptop from the disk and reset the password.
Method 4: Reset to factory settings
Most people choose to reset or remove the password since it can avoid reinstalling the system. While other people who want to reset the computer to factory settings, this may be because the laptop was struck by a virus, or it may be because there is no important data in the hard drive.
Factory Reset removes all partitions, reformats the entire hard drive, reinstalls the original operating system, reinstalls all the original hardware drivers, returns all of the software to the condition it was in at the time of purchase. All user changes or additions are removed. Therefore you can login the laptop without any password.
That is all. More info please visit our blog: How to Bypass Windows 7 Password.