$ git push -u origin master
\"D:/GitExtensions/GitCredentialWinStore/git-credential-winstore.exe\" get: "D:/GitExtensions/GitCredentialWinStore/git-credential-winstore.exe": No such file or directory
$ notepad C:\\cygwin64\\home\\Administrator\\.gitconfig
改为(去掉两个反斜杠)：
[credential]
helper = !\"D:/GitExtensions/GitCredentialWinStore/git-credential-winstore.exe\"