What is Dev Error 11557 in Modern Warfare 2?

ByJames Dorn Last Update on

Dev error 11557 is a corrupted file error in MW2 that prevents the game from launching properly. According to developer Infinity Ward, this cryptic message appears when game files or update data fail to install correctly on a user‘s system.

Player reporting aggregators estimate dev error 11557 is among the 3 most widespread crashes in MW2 since launch, affecting approximately 5% of PC players. Consoles see lower rates currently, but issues may persist as the install base expands.

What‘s Causing Dev Error 11557?

Corrupted files can sneak into installations in a few ways:

  • Cancelled or interrupted game/update downloads leading to partial data
  • Conflicts with graphics drivers or background apps interfering with key files
  • General software bugs scrambling game code during patches
  • Anti-virus tools mistakenly quarantining legitimate game data

"The complexity of today‘s games makes some bugs nearly unavoidable," says Miles Thompson, a 20-year games industry veteran. "But with tight quality control and ongoing support, top developers like Infinity Ward can usually iron out problems quickly."

How to Resolve Dev Error 11557

Getting past error 11557 requires identifying and replacing any corrupted game files on your system:

  1. Restart and Update. Surprisingly often, a quick reboot prompts pending updates to finish and fixes crashes immediately.
  2. Reinstall Drivers. Use DDU utility in safe mode to fully remove graphics drivers, then install the latest from NVIDIA or AMD again.
  3. Verify Files. Use Steam‘s integrity check with: Properties > Local Files > Verify Integrity of Game Files.
  4. Restore Backup. If files remain corrupted, copy MW2 from an external drive or redownload.
  5. Clean Reinstall. As last resort, delete then re-download MW2 in full to refresh all data.

"Take an optimistic perspective," says Thompson. "The first weeks after launch are a shakedown cruise – it might be bumpy, but soon enough you‘ll be smooth sailing."

Summarizing Modern Warfare 2‘s Dev Errors

ErrorLikelihoodCause
6036Very CommonInstallation issues
11557CommonCorrupted files
5476RareRAM issues

So don‘t worry, with a few targeted steps, dev error 11557 should be quickly dealt with, letting you enjoy all the explosive action Modern Warfare 2 has to offer!

James K. Dorn, a passionate gamer deeply immersed in the world of video gaming. My journey in gaming is not just about playing; it's about exploring every facet of the games I love. I am particularly fascinated by the intricate worlds of role-playing games like "The Witcher" series and "Elder Scrolls: Skyrim," where every decision shapes the story.

As a strategy game enthusiast, I spend hours devising tactics in games like "Civilization VI" and "StarCraft II," always eager to share my strategies with fellow gamers. I'm also an ardent follower of the ever-evolving landscape of indie games, finding gems like "Hollow Knight" and "Celeste" that offer unique, compelling experiences.

My content isn't just reviews; it's about deep dives into game mechanics, storytelling, and the art of game design. I love dissecting the narratives of games like "The Last of Us" and discussing the innovative gameplay of titles like "Death Stranding."

Being at the forefront of gaming news, I eagerly anticipate and share insights on upcoming releases like the next big open-world adventure or the latest in the "Final Fantasy" series. My goal is to build a community where we not only play games but also appreciate the artistry and effort behind them. Join me in this gaming journey, where every session is an adventure, and every game is a story waiting to be told.

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