You can use a free utility software known as Free make video converter to join video clips together into one.

You can go to this site http://www.freemake.com/free_video_converter/ 

Download it and install it.

Run the program.

join1Click on “Video” button at the top left corner and insert video clips you want to join.

After that select the Video clips you want o join by pressing “Ctrl + A

Now drag the button as shown in the picture to the right to join the clips.

join3If you want transition between the video clips then click on Transition and a drop down menu will appear and you can either select or off the transition.

Now you can select the format or the device for which you want to join video clips together from the bottom.

join4eg. In this case I am going to select “AVI” format.

Now you will get the setting box for AVI format.

join5From “Preset” drop down menu you can select the quality of the video.

join6

You can also select the location where you want to save the joined file.

join7

At last click on “Convert” button.

This is how you can join video clips together into one.