In the Settings > Show Advanced Settings. Scroll down to System and Enable 'Continue running background apps when Google Chrome is closed". - chrome.exe processes will continue to run in the background, even when you exit the browser.
Check that Google Chrome is you default browser, in the Settings it should display "The default browser is currently Google Chrome."
For the time I used Chrome 64-bit, it was buggy and didn't always run as expected. I reverted back to Chrome 32-bit and you can also easily switch back, without uninstalling. Simply visit the Chrome website and run the default (32-bit installer).