# Download - Predator Systems L4D2

## Redeem Your License Key

You must redeem your license key before downloading if you haven't already.

{% content-ref url="redeem-key-predator-l4d2" %}
[redeem-key-predator-l4d2](https://docs.clutchkeys.com/documentation/left-4-dead-2/predator-systems-l4d2/redeem-key-predator-l4d2)
{% endcontent-ref %}

## Disable Your Antivirus

You must disable all antivirus software before installing the menu.

[#how-to-turn-off-antivirus](https://docs.clutchkeys.com/documentation/clutch-keys/faq#how-to-turn-off-antivirus "mention")

## Install the Loader

1. Go to the [Customer Panel](https://predator.systems/panel/download) and download the Loader.
2. Run the `.exe` as **Administrator** before launching L4D2.
3. Log in to your account and go to the **L4D2** tab.
4. Press **Load** and wait for the loader to **automatically** open Steam.
5. Once Steam is open, launch the game and the cheat will be injected.

{% hint style="danger" %}
Experiencing Issues?

* If you are crashing, unable inject, or encountering other fatal issues, please visit their [FAQ page](https://predator.systems/forums/faq.7/) or contact their [ticket support](https://predator.systems/support/)
  {% endhint %}

## Video Tutorial

* *Coming soon.*