Install Proteus 8 Demonstration from Labcenter.com..
1. Click on “New Project” and Choose the directory to save the project. It will be saved automatically with “.pdsprj” extension
2. Select the Schematic layout from the categories and Default will be A4 size. You can select the other layout from the list provided.
3. You can also create PCB layout in the next step by selecting it and choosing the required layout.
4. Now, you have to choose the installed compiler and the microcontroller you are going to use..Watch the video for this.
Now, you can see the three tabs:- Schematic capture, PCB layout, and Source code
You will also find the pre-selection of microcontroller in Schematic capture window and header file selected in Source code window. All the work can be done in Proteus 8 application software.