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

First, you should know that the fixes we’re presenting here are band-aids on an issue Capcom and its anti-cheat vendor will need to address. A fix that works for you might not work for someone else, and so on.

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

One of the earliest solutions that gave me relief from the anti-tamper error was to turn off any in-game overlays I had running. It was specifically the Discord overlay for me, but if you have the Nvidia App overlay or others active when you try to run Monster Hunter Wilds, try turning them off.

Note that the Steam overlay did not give me issues, but that doesn’t mean it won’t be for you. The same goes for Discord, Nvidia, and any other overlay you have running. Turn them all off, and if you want to access their features, try turning them on one at a time to see which one is giving you trouble.

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

Another potential fix to the anti-tamper issue is to repair your game Monster Hunter Wilds game files.

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

Verifying your game files will force Steam to reacquire any necessary files Wilds needs to keep running and replace files that have been corrupted for whatever reason. Like restarting Steam, this solution is far𓆏 from foolproof༺, but it only takes a few minutes of your time.

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

Antivirus software sometimes has the potential to flag games as malicious, or it can be invasive enough 🌳on your system to be flagged by anti-cheat software as a potential issue. Add MonsterHunterWiꦺlds.exe as an exception, which you can find in the main game folder, located here by default:

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

If you have the game installed on a separate drive, replace the C: drive with where Wilds is located.

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

We’re getting a little more technical now. Running the game as administrator requires you to make a minor change to the settings of the .exe file, but nothing major. Find MonsterHunterWilds.exe and give it admin privileges by:

• 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

Another fix to the anti-tamper error that’s come to light since the launch of Monster Hunter Wilds is to delete your crash log files. There can be some odd interactions between those files, the Denuvo anti-tamper software, and the ability to launch the game. Here’s how to reach the files you need to delete. Be sure to back them up first:

• 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.

Hopefully, you get some relief from this error and can actually get into Monster Hunter Wilds to experience the Forbidden Lands.

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