I've just fresh installed code blocks 12.11 on my windows 7(x64) OS and tried to launch simple hello world program but no output is produced in console window. I checked compiler path and it looks good. When I first started code blocks window pop-up in the right low corner saying environment error and something about path variable missing. I simply don't know whats wrong. I have use code blocks before and never got errors like this.
Here is image of program execution: