Removing Cached login and password list in SQL Server Management Studio

You need to look in following location based on the SSMS Instance you have in your local PC.

Since mine is 19.0 version, Below is my path.

C:\Users\sconrey\AppData\Roaming\Microsoft\SQL Server Management Studio\19.0

Open UserSettings.xml in Notepad ++ or any editor of your choice.

Find the User you would like to remove and delete the Entire Element tag related to that User.

<ServerTypeItem>
    <Servers>   
        <Element>
 

        </Element>
    </Servers>
< /ServerTypeItem>

You need to remove complete Element tag from the file and save it. Please make sure during this process. SSMS should be closed, if not your changes will not eb updated.