Step 1: Boot or reboot your Windows 7 pc.
Step 2: Press F8 repeatedly until the Windows Advanced Options Menu screen appears.
Step 3: Select "Safe Mode" in the coming screen, and then Press Enter.
Step 4: Log in with "Administrator" account until you see login screen.
Click "Start > open the control panel > users accounts", and reset any user password. Now, you have recovered Windows 7 forgotten administrator password.