I know that you were trying to enter safe mode to recovery your password for your Lenovo laptop.
Use Shift+Restart Press Windows logo key + X on the keyboard.
Hold the Shift key while clicking Restart from Shut down or sign out menu.
Select Troubleshoot > Advanced options > Startup Settings >Restart.
After the PC restarts, a list of options will be shown. Select 4 or F4 or Fn+F4 (following the on-screen instructions) to start the PC in Safe Mode. If using the Internet, select 5 or F5 or Fn+F5 for Safe Mode with Networking.