Solution is very simple you have to crack the password, Its really easy. https://bios-pw.org/ Go to this website enter the code which is showing in your pc and generate a new password. Enter it and you are done. https://okadtech.com/this-computer-system-is-protected-by-a-password-authentication-dell/ This will help you to do it step by step. Hopefully this will help you.

(1) Press and hold the power button of your smartphone along with volume down for 10 to 20 seconds. (2) Now when you see the vivo logo start appearing on your smartphone screen release both the buttons. (3) Now your smartphone will start performing force reboot and when this will end you will see your problem will be successfully solved. (4) Clean your ear pice speaker and main speaker https://howtofixphone.com/samsung-a50-ear-speaker-not-working-solution/