As of the latest updates, EmuELEC has moved on to version 4.7 or 5.x, so why would you specifically search for ? The answer is stability and community support.
You are trying to install it on a PC, smartphone, or Raspberry Pi. Emuelec 4.6 Download
Once you have the download, the installation process is straightforward but requires specific software. As of the latest updates, EmuELEC has moved on to version 4