Hello @sabahanif112233,
I assume you are talking about the password you are using so people can connect to your device, correct?
If you don't see any password, make sure the random password is enabled.
Go to Options ➜ Security ➜ Random password and select 6, 8, or 10 characters, depending on how strong you want your password to be. Confirm with OK.
Your password will be back in your TeamViewer interface.
I hope this could help!
/JeanK