When the battleye launcher comes up in CMD it shows the prompt:
"Failed to start Battleye service"
Then it attempts to install battleye and then after a while just closes.
Here is a picture of the cmd:
http://i.imgur.com/kbDaREM.png
After it has "updated" it will try start again and then fail to start and try to update. After a while it just closes itself.
Picture:
http://i.imgur.com/ve0mW05.png