If you are the original owner (or can prove ownership with an invoice), Dell will reset the password for you.
Dell provides a BIOS password reset tool that can help you reset the BIOS password. Here's how to use it: dell latitude 5520 bios password reset
Why this works: The CCTK tool communicates directly with the BIOS via Windows Management Instrumentation (WMI). It bypasses the login screen because the OS has already authenticated you. If you are the original owner (or can
The Catch: If the laptop asks for a password before Windows loads (Pre-boot Authentication), CCTK will not work. You need hardware access. dell latitude 5520 bios password reset