There are many answers which you can select one of the best suitable to do your Windows 7 password reset by yourself.
Part 1: Create Windows 7 password reset disk before you lose the password
A Windows password reset disk is considered one of the easieset and safest way to reset the forgotten Windows password. You can create one like this:
Step 1. Click Start > Control Panel > User Accounts.
Step 2. Insert a USB flash drive into your computer.
Step 3. Click Create a password Reset Disk (on the left window).
Step 4. Click Next when it indicates Forgotten Password Wizard.
Step 5. Type in your current password in when it shows Current User Account Password.
Step 6. Click Next > Next > Finish.
Next time if an error password then there you can see the “password reset” option. At this time, insert the disk you created and follow the prompts to reset your password.
Part 2: Create a windows 7 password reset disk after you forgot the password
A third party is a need to reset your forgotten Windows password for Windows 7/Vista/XP/2000 or Windows Server 2003/2008.
Step 1. Download and install the program Windows Password Unlocker in any available PC.
Step 2. Insert a blank CD/DVD or USB flash drive into your computer.
Step 3. Run the program and create a password reset disk step-by-step.
You can use the disk to reset the password now.
Part 3: Bypass Windows 7 Password by Reinstalling Your ComputerIf you cannot log on your computer with the above options, you can reinstall your computer. It is the last choice for most PC users as it will overwrite much of the information on your computer. Insert the Windows 7 boot disk into your computer's CD-ROM drive and restart it. Once the computer is running, follow the onscreen instructions to boot from disk and to reinstall Windows 7.
The above options are effective when you need to perform Windows 7 password reset. And they can be also useful when you forgot Windows password for Windows Vista / XP or other pc OS. You can try one of them when you find your Windows password lost or forgotten.