I forgot my computer password?

So i just changed my password to some hard word and can't remember it at all… I know I'm an idiot so is there anyway to get back into my computer? It's a Lenovo and uses Windows 7.

Step 1: Boot or Reboot your Windows 7 laptop (take Windows 7 as example). Step 2: Press F8 to enter Advanced Boot Options before the Windows 7 loading screen appears. Or Press CTRL to enter Advanced Boot Options when computer power on. Step 3: Choose Safe Mode with Command Prompt in the coming screen, and press Enter.

I'd say reinstall Windows.