# Reset options

Because the pack is using Config Manager or YOSBR, your vanilla options and most of the mod ones will not change when you upgrade. This is made so that you can upgrade without having to reconfigure your options all the time.

However, at some point you may still want to do that in order to get the latest changes.

{% tabs %}
{% tab title="Modern versions" %}

1. Launch the game
2. Go to `Mods` -> `Config Manager` -> `🎛️`
3. If you want to *apply latest changes* but keep configs for added mods, select `Update modpack's configs`.
   * If you want to *delete all configs* and start fresh, select `Reset modpack's configs`.
4. Close the game and start it again. See if it works.
   * If you got an error (especially on alpha or beta versions), start the game again to ensure configurations are properly applied.
     {% endtab %}

{% tab title="FO 10.3.1 and older" %}

1. Open the modpack folder:

{% tabs %}
{% tab title="CurseForge App" %}
Right click on the modpack tile → `Open Folder`
{% endtab %}

{% tab title="Modrinth App" %}
Right click on the modpack tile → `📂 Open folder`
{% endtab %}

{% tab title="Prism Launcher" %}
Right click on the instance → `Folder` → `.minecraft`
{% endtab %}

{% tab title="MultiMC" %}
Right click on the instance → `Minecraft Folder`
{% endtab %}

{% tab title="Minecraft Launcher" %}
Click `Installations` → hover on the instance → click `📁`
{% endtab %}
{% endtabs %}

2. Delete the `config` folder
   * If you prefer, also delete `options.txt` which stores vanilla options
3. Download [your version of the modpack again from Modrinth](https://modrinth.com/modpack/fabulously-optimized/versions)
4. Rename the file to `pack.zip`
5. Open the file you renamed, go to `overrides`
6. Copy/extract the folder `configs` out to the modpack folder you previously opened
   * You may delete the `pack.zip` after you're done
7. Launch the game. Modpack's defaults are now applied!
   {% endtab %}
   {% endtabs %}


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