Are 18 files failing to authenticate in Modern Warfare 2?
Are your MW2 files unverified on Steam on your PC?
If so, the game will crash when you try to play the campaign mode.
Here is the full error message, “File 33/39/45 could not be validated and will be requested again”.
The error message occurs when you try to verify the integrity of game files on Steam.
In this guide, you will learn how to fix files 33/39/45 that failed to authenticate in Call of Duty: Modern Warfare 2 (MW2).
- Why files 33/39/45 fail to validate in MW2?
- How to fix error 33/39/45 file failed to authenticate in Modern Warfare 2
Why files 33/39/45 fail to validate in MW2?
We’ve noticed some stability issues with the latest NVIDIA drivers 526.47 on Call of Duty. #MWII. For now, we recommend keeping the 516.59 or 522.25 drivers.
– BeenoxCODPC (@BeenoxCODPC) October 27, 2022
Files 33/39/45 failed to validate in MW2 due to an issue with the latest Nvidia drivers (version 526.47).
It could also mean that your anti-virus program is interfering with the files.
According to @BeenoxCODPC on Twitter, they mentioned that there is a stability issue with the latest Nvidia drivers.
They suggest keeping the driver 516.69 or 522.25 until Nvidia or MW2 fix the problem.
Many players are complaining about authentication issues.
“When I tried to validate the files, the error message said they were corrupted and 9MB of files would download each time. What’s the solution?”
“When I verified the integrity of my game files, it said 18 files could not be authenticated. Then it said it was requesting them again, Steam downloaded a small update and the game failed to launch. When I verify again it says I still have 18 unverified game files. Now it says 33 files could not be authenticated”.
How to fix error 33/39/45 file failed to authenticate in Modern Warfare 2
To fix files 33/39/45 fail to authenticate in Modern Warfare 2, you need to restore your Nvidia drivers to 516.69 or 522.25.
You also need to allow the game in your anti-virus program, including Windows Defender Firewall and Windows Security.
If all else fails, you can contact Activision support here: https://support.activision.com/.
Fix 1: Restore your Nvidia drivers
- Search for “Device Manager” using Windows Search and open it.
- Expand “Display Adapters” and select your GPU.
- Go to the “Drivers” tab and select “Back Driver”.
- Launch Call of Duty: Modern Warfare 2.
Note: If you don’t have the “Roll Back Driver” option, follow the next fix (fix 2) to install the old Nvidia driver.
Fix 2: Do a clean Nvidia install to 516.69 or 522.25
- Go to https://www.nvidia.com/en-us/geforce/drivers/.
- Search for your driver version.
- Download driver version: 522.25.
- Click “Download” and run the installation.
- Select “Custom (Advanced)”.
- Select “Perform a clean install”.
- Follow the on-screen instructions to complete the installation.
- Launch Call of Duty: Modern Warfare 2.
Fix 3: Allow game access on Windows Security
- Open Windows settings > Privacy & Security > Windows Security > Virus & Threat Protection > Manage Ransomware Protection > Allow Apps Through Controlled Folder Access Control > Add allowed apps > Browse all apps > select cod.exe app > Open.
- Add the rest of your .exe applications to Controlled folder permissions.
Fix 4: Allow the game on Windows Defender Firewall
- Open Control Panel > System and Security > Windows Defender Firewall > Allow an app or feature through Windows Defender Firewall > Change settings > Allow other apps… > Browse … > select the cod.exe application > Add.
- Add the rest of your .exe applications to your Firewall.
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Categories: How to
Source: thpttranhungdao.edu.vn/en/
