June 02, 2015
Windows Live Writer is Alive!
IT'S WORKING AGAIN!!! With a caveat - you'll get an error message about not being able to log in. After you do, check the Gmail account associated with your Blogger. Open the link to control your access security settings (https://www.google.com/settings/security/lesssecureapps) and allow "Access for less secure app." Then click the back arrow.
Quit LW, then open & try again. Success!
Unfortunately Google is still considering this a "less secure" app as if to thump Microsoft in the nose for noncompliance.
This link is from the social.microsoft forum