I dont use the osx widget dashboard. This post will show you how to disable dashboard osx. I had to look for a way to turn it off to save some resources and to stop the default widgets showing in my virtual desktop spaces while I was looking for another app.
Im not sure when it was introduced, but in el Capitan if you go to system preferences > mission control there is a dropdown for ‘Dashboard’ – you can set this to ‘off’ to disable the dashboard without having to enter the terminal commands below:
It turns out that its pretty easy to disable the widget dashboard and it works in snow leopard, lion, mountain lion, Yosemite and el Capitan too :)
open terminal > type:
defaults write com.apple.dashboard mcx-disabled -boolean YES killall Dock
this will disable your widget dashboard and restart the dock.
To re-enable the widget dashboard just type
defaults write com.apple.dashboard mcx-disabled -boolean NO killall Dock
this will enable the widget dashboard and restart the dock so that you can see your widgets again