1. In the downloaded MagicRetouchPro package navigate to Magic Retouch Pro\Plug-In\Photoshop CC 2015\Windows
2. Run the file "Install.bat" by double clicking on it a dialogue box will open click "Yes" to complete the installation.
3. Now Navigate to Retouch Preset folder and open Retouch Preset.tpl with Photoshop.
4. Once Photoshop is open in the main menu Goto Windows>Extensions>MagicRetouchPro to open the extension.
5. Installation complete.