How to Fix Modern Warfare 3 and Warzone Dev Error 5433

Modern Warfare 3 player holding gun with flames on ground
Credit: Activision

Modern Warfare 3 player holding gun with flames on ground
Credit: Activision

Struggling to get round the Modern Warfare 3 Dev Error 5433 and load into the action. We've got you covered.

With Season 3 Reloaded for Call of Duty underway, many players attempting to access multiplayer and Warzone are encountering Dev Error 5433 which is stopping them from playing matches and getting their hands on the brand-new BAL-27 assault rifle. Thankfully, we've got all of the known workarounds.

In this guide, find out how to fix the Modern Warfare 3 Dev Error 5433 to get back into matches as quickly as possible.

MW3 Dev Error 5433 Causes

After some investigating, the Modern Warfare 3 Dev Error 5433 is caused by either a corrupted or overloaded cache which causes a conflict. The cache could be overloaded due to leftover files or temporary ones shortly following an update.

Additionally, there's a chance the error code may appear when the game attempts to use more graphics memory than what's available. I recommend lowering the quality of the graphics settings as a last resort to get around this hugely frustrating issue.

Modern Warfare 3 players aiming weapons
expand image
Credit: Activision

How to Fix MW3 Dev Error 5433

The good news is that there is a workaround to fix the Modern Warfare 3 Dev Error 5433 problem. Her's what you need to do to get back into the game:

  • Load Call of Duty
  • Head to Game Settings
  • Select the Graphics tab
  • Look for On-Demand Texture Streaming
  • Change the Allocated Texture Cache Size to Small

This should cause MW3 Dev Error 5433 to disappear completely but if it doesn't, try changing the language or restarting your PC or console.

As a last resort, you can perform a full reinstall of Modern Warfare 3 but we only recommend this when all other options haven't worked.

There you have it, that's all there is to know about how to fix Modern Warfare 3 Dev Error 5433. For more, check out our guides page for all the latest walkthroughs and advice on the most popular games.

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