The primary mouse button would be the left-click.Without it you wouldn't be able to open/run programs with your mouse. Also people use the left-click more than right.You can make either button the primary mouse button, the default is the left button.By going to;Start-->Control Panel-->Printer and other Hardware-->Mouse
Check if you clicked on the don't use mouse button.If that does not work use the center button to move the mouse.
Shift + Mouse Button (FIRE)
secondary mouse button
Use the mouse as a point and click device. Watch the monitor as you move the mouse around and you should see an arrow moving on the window/screen in relationship to the motion of the mouse. Now move the mouse so that the corresponding arrow you see on the Graphical User Interface (aka GUI~aka what you see on the computer's monitor screen) is placed on the desired location (e.g., the button you want to click or highlighted item you want to select) of the interface (e.g., on the button or item on the monitor that you want to click) and then clicking the left mouse button on the mouse to select the (usually highlighted) item or button on the screen. The left mouse button is used more often and to click to take actions as described above, but when you click on the right mouse button, it allows you to see a menu of other actions you can use the left mouse button to select (such as copy, delete, move, print, etc.). The actions you can choose on that menu will sometimes change depending on where you are hovering the arrow on the screen. There are many games for practicing mouse use and other demonstrations of how to use a mouse available online. See the link in the related links section for a demo from Microsoft on how to use a mouse.
you will be getting option to choose
The mouse button that is the most used is the 'left side' of the mouse.
Give the function of the right mouse button
A scroll mouse is a mouse which includes a scroll wheel. The scroll wheel can be used to scroll up and down webpages or documents, and can also be clicked as a third button.
The "mouse wheel" or "third mouse button" are the default zoom buttons. You can edit your controls at anytime however in the Controller Configuration menu.
Place the mouse pointer over the [x] sign in the tab and click. Or if you are in the tab you want to close, press Ctrl+W Or Use your middle mouse button Mouse over the tab you want to close and press the middle mouse button.
Hold the left mouse button down to pan the globe in the direction the mouse moves in Google Earth. Hold right mouse button and move mouse to zoom in/out. Move mouse up to zoom out and down to zoom in or use the scroll wheel. Same mouse controls also work in Google Earth plugin within the web browser.