windows 7 - How stop Google Chrome auto - update?

Hello i want stay in Chrome v51.0.2704.106 but it's impossible because the auto- update and its aggressive integration into windows

• I already edited the Registry of windows and does not work.


• I already edited the start up programs of google update and similars
  and does not work.


• I already edited the files of the installation folder of Chrome (I
  try deleting the whole folder called "update".


• I already Disabled the services of Google Chrome update in Windows.

I do not know what else to do..