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How to fix the Invalid game executable error for Halo MCC
4 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
Many players have posted on support forums about an Invalidgameexecutable error.
That issue is widely reported forgameswith Easy Anti-Cheat, such as Halo: The Master Chief Collection.
When some players try to launch the game, a Launch Error Invalidgameexecutableerror messagepops up.
How can I fix the Invalid game executable error for Halo: MCC?
1. Run the game with administrator privileges
Note:Players who play Halo: Master Chief via Steam should also run Steam as an administrator. Check out ourguide to running Steam as an administratorfor further details.
2. Disable Easy Anti Cheat
Open the Master Chief Collection page in your Steam or Xbox appgamelibrary and select Play.
A small window pop-up will then open that includes two options. Select thePlay Halo: MCC Anti-Cheat disabledoption in Steam orHalo: MMC Anti-Cheat Disabledsetting in the Xbox app.
Note:You might not be able to play Halo: MMC online with Easy Anti-Cheat disabled. However, Halo might at least start for you to play it single player with Easy Anti-Cheat disabled.
3. Repair Easy Anti-Cheat
4. Reinstall Halo
You can also uninstall Halo: MCC with third-party uninstaller software, some of which will more thoroughly erase leftover files, folders, and registry entries.
⇒Get iOBit Uninstaller
5. Verify the integrity of game files (Steam fix)
6. Select the Repair option
Note:The above resolution is more specifically for the MS Store Halo: The Master Chief Collection game app.
7. Disable antivirus utilities before launching Halo: MCC
To disable third-party antivirus software, you’ll need to right-click the antivirus utility’s system tray icon to open a context menu for it.
Then you can usually select some kind of disable option on most antivirus utilities’ context menus. Select to disable the antivirus shield for about an hour if you can.
Note:If disabling antivirus software fixes the issue, it’s most likely that its shield is incorrectly flagging Easy Anti-Cheat or Halo: The Master Chief Collection. In which case, you can add Easy Anti Cheat or Halo: MCC to your antivirus utility’s white list to stop the false positive flagging.
8. Update Windows 10
Players have confirmed some of the fixes above can resolve the Invalidgameexecutable error for Halo: The Master Chief Collection and othergames.
However, players who still need further potential fixes can submit a support ticket at theHalo Support website.
Matthew Adams
Windows Hardware Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things surrounding it.
He is passionate about the tech world, always staying up-to-date with the latest and greatest. With an analytical view, he likes problem-solving, focusing on errors and their causes.
In his free time, he likes to read and write about history and tries to always develop new skills.
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Matthew Adams
Windows Hardware Expert
He is passionate about everything surrounding Microsoft’s OS, focusing on troubleshooting guides & tips for everyday problems.
