Run the PacketTracerPatcher.exe . This tool replaces the internal hash with a known one .

Once inside, you can navigate to the section and set a new one or disable it entirely .

ferib/PacketTracerRecovery: Password Recovery tool ... - GitHub

In Cisco Packet Tracer, the is set by the creator of a .pka (Packet Tracer Activity) file to prevent unauthorized access to the scoring metrics, answer network, and instructions. Because these files are often used for graded assessments, there is no official "recovery" or "forgot password" feature provided by Cisco for students or users. Known Bypassing Methods