Hi @Slava ,
Thank you for your question. Which model are you working with?
To reset the system password, you will need to restore the factory default password. The following section of the EasyBuilder Pro manual walks through the reset steps in detail:
We also have a forum post that explains how to update each system password after performing a factory reset, which you may find helpful:
https://forum.weintekusa.com/t/how-to-modify-hmi-passwords/1839