Minecraft Forums

[19:48:56 INFO]: Minecraft Launcher 1.6.61 (through bootstrap 100) started on windows...
[19:48:56 INFO]: Current time is Sep 25, 2016 7:48:56 PM
[19:48:56 INFO]: System.getProperty('os.name') == 'Windows 7'
[19:48:56 INFO]: System.getProperty('os.version') == '6.1'
[19:48:56 INFO]: System.getProperty('os.arch') == 'amd64'
[19:48:56 INFO]: System.getProperty('java.version') == '1.8.0_25'
[19:48:56 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[19:48:56 INFO]: System.getProperty('sun.arch.data.model') == '64'
[19:48:56 INFO]: proxy == DIRECT
[19:48:56 INFO]: JFX is already initialized
[19:48:56 INFO]: Refreshing local version list...
[19:48:56 INFO]: Refreshing remote version list...

It ends here and gets stuck. It just says loading versions and sits there.

Looks like MC is being prevented from accessing the internet. Could be your firewall blocking Java.