How to Launch Halo: The Master Chief Collection with Easy Anti-Cheat (EAC) Disabled

To launch Halo: The Master Chief Collection (MCC) with Easy Anti-Cheat (EAC) disabled on the Xbox app for PC or on Steam:

Steam

Navigate to Halo: The Master Chief Collection in the Steam client's Library tab, then press the Play button on its page. In the window that pops up, select “Play Halo: MCC Anti-Cheat Disabled (Mods and Limited Services)” and click the Play button.

Screenshot of the Launch Option pop-up window in Steam.

To launch MCC with EAC enabled again, fully exit the game then choose the other option shown above ("Play Halo: The Master Chief Collection") when you launch Halo: MCC on Steam.

Microsoft Store and Xbox apps

In the Windows search field search for MCC. From the results, select “Halo: MCC Anti-Cheat Disabled (Mods and Limited Services)” to launch Halo: MCC with EAC disabled.

Screenshot of the game as it appears in Windows search menu.

To launch MCC with EAC enabled again, fully exit the game and launch normally from the Microsoft Store app.

Changes when playing with Easy Anti-Cheat Disabled

There are several important things to consider when playing MCC with EAC disabled:

• While playing with Easy Anti-Chat Disabled the public matchmaking features will be unavailable.
  • If you click on matchmaking menu items while EAC is disabled, you'll get an alert that says "Anti-Cheat Incident – You cannot access this feature because Easy Anti-Cheat isn’t enabled."
• You can modify game files and content, then play online through Custom Games and campaign missions.
• If you're having issues playing MCC with EAC enabled after installing mods, you may need to restore the game files to their original state.
  • If you are not familiar with modding and altering core files, be careful - you could accidentally leave your game files in an unplayable state, requiring a full re-installation. It's recommended to make a backup of core game files before attempting any modding.

Steps for repairing or verifying game installation

Steam

1. Open your Steam client and navigate the Library tab.
2. In the Library list of games (left column of the Steam client), right-click on Halo: The Master Chief Collection and select Properties.
3. Click on Installed Files and click the “Verify integrity of game files” button.
4. Wait for the verification process to complete. This can take a few minutes.
5. Once complete the green PLAY button will be available.

Screenshot of the Properties menu on Steam.

Xbox and Microsoft Store app

1. Open the Xbox app on your Windows PC.
2. In the left menu of the Xbox app located the Most Recent or Installed Menu and open Halo: The Master Chief Collection.
3. Click the ellipse button (3 dots) located near the top of the page. Select Manage from the drop-down menu.
4. Click the Files tab.
5. Click Verify and Repair.
6. Read the warning pop-up and click Yes.
7. A green status button will show near the top of the screen.
8. When the repair is complete the status button will change to a green PLAY button.

Screenshot of the Manage menu on the Xbox app.