Call of Duty: Modern Warfare or Warzone freezes on startup? You may encounter the dreaded dev 6164 error. This issue has been around for months and unfortunately most of its possible fixes require time, patience and persistence.
Modern Warfare & Warzone | How to fix dev 6164
Development error 6164 in Modern Warfare and Warzone causes the game to crash during the Infinity Ward logo. Most of the fixes for dev 6164 involve repairing or reinstalling all game software.
Both Call of Duty: Modern Warfare and Warzone have many different numbered error codes. Unfortunately, these codes don’t really help solve the problem. Users usually go to the Activision Support Forum looking for solutions, only to have the same solutions repeated over and over again.
As you may have guessed, this is the case with 6164. There are a ton of posts on the Activision forums and Modern Warfare subreddit asking about 6164, and none offer any sort of proven solution. The only consistent advice is to uninstall the game, delete the Modern Warfare folder in Documents, and then completely reinstall the software. In some cases, users even say that you need to reinstall Battle.net itself.
This results in a mind-boggling sort of scenario, in which you’ll have to pitch every potential solution to the problem. In order of solutions from least drastic to most drastic, here’s what you should try:
- Use the Scan and Repair tool in the Battle.net Launcher
- Disable any in-game overlay software
- Disable any overclocking or undervoltage software
- If the problem started recently, please wait for a new patch
- If it was installed on an external hard drive, try installing it on an internal hard drive
- Try installing a different set of RAM
- Uninstall and reinstall the game completely
- Completely uninstall and reinstall both the game and the Battle.net launcher
- Wait for an actual fix from the developers
Dev error 6164 is a doozy, and while it can be fixed with a simple reinstall, your chances seem slim. This is one of the most frustrating mistakes in Call of Duty: Modern Warfare and Warzone, and it’s sadly one that’s nearly impossible to tackle.
