Windows

Open the Control Panel and select Uninstall a program, or type uninstall on Windows 8.

User-added image    
User-added image
 

Highlight ActivDriver and click Uninstall.

User-added image
 

Click Yes to uninstall the ActivDriver.

User-added image
 

Mac OS X 

Open Applications and locate the Promethean folder. Open the ActivDriver subfolder and double click uninstall.

User-added image
A terminal will open. Enter your password. The cursor won't change or move while you type; this is normal. Hit Enter
User-added image
You will receive confirmation that the ActivDriver has been uninstalled.
User-added image

Linux

Open Synaptic Package Manager.

User-added image
 

Enter your password when prompted and click Authenticate.

User-added image
 

Select the Promethean ActivSoftware repository. Locate the activdriver package and right click. Select Mark for Complete Removal.

User-added image
 

Click Mark.

User-added image
 

The selected packages will be highlighted. Click Apply to uninstall the ActivDriver.

User-added image