Here is an easy way to reset Windows 7 password, without having to buy or download any third-party software.
In order to do this, you must have a Windows installation CD or DVD. Any Windows 7, Vista or XP CD or DVD will work.
First you have to boot from the installation CD. Most PC’s are already set up to use the CD/DVD drive as the first boot device, which means you only have to insert the CD/DVD and restart the PC. Before Windows begins to load, you will see a message that says “press any key to boot from CD”, just press any key. However, if your PC is not set up to boot from the CD/DVD first, you will have to set it as your first boot device in the BIOS setup. If you don’t know how, it’s really easy. Soon as you turn your PC on, you can enter the BIOS setup by pressing the DEL key. Although you would normally use the DEL key, the key you have to press varies from PC to PC, but it will either be the DEL, F1, F2, ESC, or F10 key.