Today I installed live writer 2012 into my PC but I couldn’t access Blogger sites with live writer. But it worked with WordPress and other sites. I searched and found that Google has changed their security policy and remove access to blogger with external tools like live writer.I could overcome this issue with following steps:
Go to https://myaccount.google.com/ or simply account settings. Under Signing in title it has option Access for less secure apps set to Blocked. Just click on this option and set to enable. And another thing if you don’t have blogger account this option might not visible.