How to change my github username and password

Question

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When I want to clone an origin repository ,at he first time Iinputed the wrong username and password. So I want to chang ,but I don't know how to do this。And the username and password is different from the username of my github acccount .

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Mickey Kocic · Answer

don't see an option to add a new username and pasword, just to Edit and Delete.

During install my Git authentication failed because I mistyped the Git username and there was no way to change that, so I just quit installation and now the software is broken.

SDoig · Answer

Go to Tools > Options > Authentication > Saved Passwords

Either edit your existing username to enter a new password

or Delete your existing username and add a new username password combination.