How to fix the anti-tamper error in Monster Hunter Wilds on PC

Almost no AAA game releases on PC these days without at least a few issues. Monster Hunter Wilds is no exception, and one of the most frustrating problems you can get is a so-called “anti-tamper error” caused by the game’s anti-cheat. Here are all the ways to fix it.

Fixes to the Monster Hunter Wilds anti-tamper error

Initially, it’s essential to understand that the solutions provided here are temporary measures to deal with a problem that ultimately lies with Capcom and their anti-cheat service provider. The effectiveness of these solutions may vary from one user to another, and there might be instances where they don’t work at all.

Anti-tamper error fix #1: Disable in-game overlays

One of my initial solutions that alleviated the anti-tamper issue I encountered was disabling any in-game overlays, such as Discord or Nvidia App overlay. If you’re experiencing trouble with Monster Hunter Wilds, it might be worth turning off these overlays to see if that resolves the problem for you.

Keep in mind that the Steam overlay didn’t cause me problems, but it might not be problem-free for everyone. The same advice applies to Discord, Nvidia, and any other overlays you’re using. Shut them all down temporarily, then if needed, reactivate each one individually to identify which one could potentially be causing issues in your setup.

Anti-tamper error fix #2: Restart your PC and Steam

Some of my friends trying to get into Wilds shortly after launch had some luck getting past the anti-tamper error by brute-forcing the issue, attempting to open the game repeatedly until it just worked. A simpler, less frustrating solution is likely to restart Steam and, if that doesn’t work, your PC as well. It’s not foolproof, but it’s non-invasive and doesn’t take too long.

Anti-tamper error fix #3: Verify your game files

A possible solution for addressing the anti-tamper problem could be to mend the data files of your Monster Hunter Wilds game.

This way, the sentence maintains its meaning while sounding more conversational and easy to read.

Right-click on Monster Hunter Wilds in your Steam Library.
Select Properties.
Navigate to Installed Files and select “Verify integrity of game files.”

Checking your game files on Steam will make it download any required files that the game “Wild” might need to function properly. This includes replacing files that may have become corrupted. While this method isn’t always guaranteed, it’s quick and straightforward. It’s similar to restarting Steam, just in case some game components aren’t working as intended.

Anti-tamper error fix #4: Add Monster Hunter Wilds as an exception to your antivirus

Occasionally, antivirus programs might mistakenly identify games as harmful or intrusive enough to be flagged by anti-cheat software. To prevent this from happening with Monster Hunter World’s executable file (MonsterHunterWilds.exe), you can add it as an exception. This file is typically found in the main game folder, which defaults to:

[Default game folder location]

C:\Program Files (x86)\Steam\steamapps\common\MonsterHunterWilds

If ‘Wilds’ is installed on a different drive, swap out the C drive with the location where ‘Wilds’ is saved instead.

Anti-tamper error fix #5: Run Monster Hunter Wilds as administrator

Here’s a simpler way to explain it: To run MonsterHunterWilds game with administrator rights, you need to adjust some minor settings on its executable file (MonsterHunterWilds.exe). Don’t worry, it’s not a big deal. Just right-click the game icon, select ‘Run as Administrator’, and you’re good to go!

Right-click on Monster Hunter Wilds in your Steam Library
Select Manage > Browse local files
Right-click on MonsterHunterWilds.exe and select Properties at the bottom of the list
Check the box near the bottom that reads, “Run this program as administrator.”
Click Apply to save your changes

Try running Wilds through Steam to see if your problem’s fixed.

Anti-tamper error fix #6: Delete crash log files

1. First, ensure that you have made a backup of your crash log files before proceeding.

2. Navigate to the game’s installation directory (usually located in ‘Program Files’ or ‘Program Files (x86)’ within your system drive).

3. Within the game folder, locate and search for files with names that start with “monsterhunter” and have extensions like “.log” or “.dmp”. These are likely to be your crash logs.

4. Once you’ve found them, delete these crash log files.

5. Restart your computer and try launching the game again to see if the issue has been resolved.

Right-click on Monster Hunter Wilds in your Steam Library.
Select Manage > Browse local files
Delete CrashReport.exe and CrashReportDLL.dll

I’d recommend trying these six fixes for the Monster Hunter Wilds anti-tamper error in the order presented. The most straightforward solutions are always best to try first, as there’s a much lower chance of something else breaking. They’re also the easiest to rule out as failed experiments because there are fewer moving parts to account for.

I’m crossing my fingers that this fix helps you and allows you to dive into ‘Monster Hunter World’ to explore the Forbidden Lands.

2025-03-01 00:18