To install an additional package automatically when starting Tails:
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To see which packages are installed automatically every time you start Tails, choose <span class="menuchoice"> <span class="guimenu">Applications</span> ▸ <span class="guisubmenu">System Tools</span> ▸ <span class="guimenuitem">**Apps ▸ System Tools ▸Additional Software</span></span>. **.
To see which packages are installed automatically every time you start Tails, choose **Apps ▸ System Tools ▸ Additional Software**.
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To see which packages are installed automatically every time you start Tails, choose <span class="menuchoice"> <span class="guimenu">Applications</span> ▸ <span class="guisubmenu">System Tools</span> ▸ <span class="guimenuitem">Choose **Apps ▸ System Tools ▸Additional Software</span></span>. **.
After you installed many packages that you are not using anymore, you can free some space in your Persistent Storage:
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To see which packages are installed automatically every time you start Tails, choose <span class="menuchoice"> <span class="guimenu">Applications</span> ▸ <span class="guisubmenu">System Tools</span> ▸ <span class="guimenuitem">Additional Software</span></span>. Choose **Apps ▸ System Tools ▸ Console**.
Sometimes, you might need to configure additional APT repositories. For example, to install packages from the `non-free` section of Debian. To do so:
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Correct the ownership and permissions of your additional `sources.list` files to be owned by `root` and only readable by others. For example:, execute the following commands.
Correct the ownership and permissions of your additional `sources.list` files to be owned by `root` and only readable by others. For example, execute the following commands.