How to reset unity in Ubuntu 14.04

For those who struggle with frequent freezes of Unity, this is a short guide on how to reset Unity to default settings in Ubuntu 14.04.

1. Open a terminal window (from Launcher or CTRL+ALT+T)
2. Type the following

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    sudo apt-get install dconf-tools
    

1. Reset unity:

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    dconf reset -f /org/compiz
    setsid unity
    unity --reset-icons