Git password expired. How to reset git authentication?

Sometimes, when you try to git clone the git repository or do any push or pull, it says:
remote: HTTP Basic: Access denied  fatal: Authentication failed for "~~yourRepositoryName"

The simplest reason is that your password is expired and/or changed externally. And, you need to change it for git to understand.

So, the question comes that How can you re-access your git repository or simpley put - How will you reset the password credentials.

Solution: Cheers, its simple.

Command:
git config --system --unset credential.helper

This will start resetting your credential manager stored wrong authentication password. Will ask for new password.
And, that's it. Enjoy.