soutceTree pull in the code when you need to enter an account name or password, if you enter the wrong moment, it can be modified:
1. Locate the directory: C: \ Users \ Administrator \ AppData \ Local \ Atlassian \ SourceTree
2. Password input error:
By editor opens, delete marked so on the line
3. If you enter the wrong account name, the same directory:
Open userhosts file, delete input errors account name on it!