Forum Discussion

Newcomer

3 months ago

Apex Legends Crash: Integrity Error 0x80000001

Hello. My Apex Legends keeps crashing with an "Integrity Error 0x80000001" since I started playing again a few weeks ago. It crashes pretty much every game I join - sometimes at the start of the m...

anticheat

crashing

EA_Salmon

Community Manager

2 months ago

Hey ac3E3 ,

Thanks for the detailed write-up and for listing what you’ve tried. We're sorry to hear you're experiencing game crashes. We understand this significantly impacts the gaming experience.

“Integrity Error 0x80000001” in Apex is almost always caused by Easy Anti-Cheat (EAC) integrity checks; perhaps that's why verifying Steam files alone often isn’t enough.

Here’s the fastest set of things to try for Windows 11 + Steam + Discord setups like yours.

1. Repair EAC service (most important step)

Steam → Apex → Manage → Browse local files
Open the EasyAntiCheat / EasyAntiCheat_EOS folder
Run EasyAntiCheat_EOS_Setup.exe as Administrator
Choose Apex Legends → click Repair Service
EAC explicitly documents that games ship EasyAntiCheat_EOS_Setup.exe and it’s used to repair the Windows service.
After that: reboot and test.

2. Eliminate overlays/hooks as a test

Disable Discord in-game overlay (Discord acknowledges overlay reliability issues in some games).
Disable Steam overlay temporarily for testing (Apex can run without it; just to isolate).
Disable NVIDIA overlay if installed (GeForce Experience / NVIDIA App).
Close any monitoring tools (RTSS/MSI Afterburner), controller mappers (reWASD/DS4Windows), virtual drives, etc. These are commonly cited triggers for Apex integrity errors.
Test 2–3 matches after making changes.

3. Do a Clean Boot test

Since you describe a pretty clean install, this is a quick way to prove whether a background service is the trigger:

Win + R → msconfig
Services → Hide all Microsoft services → Disable all
Startup → open Task Manager → disable all startup items
Reboot → launch only Steam + Apex
If the crashes stop, re-enable items in batches to find the culprit.

Thank you for posting, hope that helps.

GahyeonDream

Rising Newcomer

22 days ago

I had the same issue when doing the fix of reapairing EAC, the application doesnt even launch and just stop. It pops up and then close right after

EjtiNebon
Newcomer
20 days ago
Yeap, I got the same issue and followed a few tutorials, running it incompatibility mode, disabling fullscreen optimizations, going into services and making startup automatic, rebooting, the only thing that has worked for me was deleting the anticheat folder and then repairing it with steam, but I can only play a few minutes before it goes back to that problem and I am sick of it.
- SparrowHawk1133
  Rising Newcomer
  20 days ago
  I have the exact same problem, but ONLY when the Storm Point map is in rotation. I can play as much as I want when it is not... but as soon as it is, this error occurs. I've tried many things my side... seems to be an EAC false flag for this map on my PC
  - EA_Salmon
    Community Manager
    20 days ago
    Thanks for adding that detail.
    
    The fact that this is only happening when Storm Point is in rotation is especially helpful to know. If you’re otherwise able to play normally, but the issue starts again as soon as Storm Point comes up, that does sound like an important pattern.
    
    We’ll make sure that detail is noted along with the rest of the reports here.
    
    Thanks again for taking the time to share it.
- EA_Salmon
  Community Manager
  20 days ago
  Hi EjtiNebon ,
  
  Thanks for the extra detail. -time file issue, and more like something is causing the problem to return once the game reaches a certain point again.
  
  If you’re willing to share it, a DxDiag report may still be helpful for comparing system and driver details:
  
  It would also help to know whether the issue recurs at a specific point each time, for example, when entering a particular mode, map, or stage during game launch.
  
  Thanks again for taking the time to share what you’ve already tested.
EA_Salmon
Community Manager
20 days ago
Hi GahyeonDream ,

Thanks for the update.

If the EAC repair tool is opening and then closing immediately, a few things may still be worth trying if you haven’t already:

Fully close the Steam / EA app first, then relaunch the platform client as Administrator

Launch the game from the platform client itself rather than from a shortcut

Make sure Windows is fully up to date

Repair the game files as well, not just the anti-cheat side

If you’re on PC and willing to share it, a DxDiag report may also help give a bit more context on the system side.

This article might be helpful.

Thanks again for sharing that detail. We’ll make sure it’s noted along with the rest of the reports here.