Updated October 7, 2026
If AION 2 closes shortly after launching and shows AION2.exe - 0xE0000027, first check the programs and services running alongside the game.
The quickest troubleshooting order is:
- Restart Windows.
- Launch AION 2 without unnecessary background utilities.
- Check process-management, memory-cleaning and game-modification software.
- Temporarily disable hardware-monitoring, RGB and overlay utilities.
- Verify the game files.
- Use a Windows clean boot if the problem continues.
- Save the NC Guard error log if you still cannot identify the conflict.
You do not necessarily need to reinstall AION 2 just because this error appears.
📋 Table of Contents
- Quick Answer
- What Does AION 2 Error 0xE0000027 Mean?
- 1. Restart Windows and Launch AION 2 First
- 2. Check Installed Background Programs
- 3. Check Cheat Engine, WeMod and Similar Tools
- 4. Check Memory-Cleaning and Optimization Tools
- 5. Temporarily Disable Hardware and RGB Utilities
- 6. Verify AION 2 Game Files
- 7. Use a Windows Clean Boot
- 8. Save the NC Guard Error Log
- If AION 2 Still Closes Without 0xE0000027
- What Not to Do
- FAQ
- Final Takeaway
Quick Answer
If AION 2 closes shortly after launching and shows AION2.exe - 0xE0000027, first check the programs and services running alongside the game.
The quickest troubleshooting order is:
- Restart Windows.
- Launch AION 2 without unnecessary background utilities.
- Check process-management, memory-cleaning and game-modification software.
- Temporarily disable hardware-monitoring, RGB and overlay utilities.
- Verify the game files.
- Use a Windows clean boot if the problem continues.
- Save the NC Guard error log if you still cannot identify the conflict.
You do not necessarily need to reinstall AION 2 just because this error appears.
What Does AION 2 Error 0xE0000027 Mean?
The 0xE0000027 error can appear when AION 2 closes during its protected startup process.
There is not one confirmed cause that explains every occurrence.
In practice, the error can be associated with conflicts involving software that monitors, modifies, manages or interacts closely with Windows processes. Examples can include game-modification tools, process managers, memory-optimization utilities, hardware-monitoring software and some peripheral-control applications.
That is why simply reinstalling the game does not always solve the problem.
The goal is to determine whether another program or service is interfering with AION 2 during startup.
Important: Seeing 0xE0000027 does not by itself mean that your AION 2 account has been banned.
1. Restart Windows and Launch AION 2 First
Before changing anything complicated, perform a clean restart.
Completely close Steam and any AION 2 launcher processes, then restart Windows.
After the restart, avoid immediately opening optional utilities such as:
- Game modification tools
- Process managers
- RAM cleaners
- Hardware monitoring software
- Overclocking utilities
- RGB control software
- Third-party overlays
Then launch AION 2.
This simple test can tell you whether the problem is related to a program that normally starts with Windows or runs in the background.
If AION 2 works after the restart, start your usual programs one at a time. This can help identify which application causes the problem to return.
2. Check Installed Background Programs
If AION 2 still produces 0xE0000027, look at the software installed on your PC that can interact with running processes.
You do not need to uninstall everything at once.
Instead, concentrate on these categories.
Process-Management Software
Examples include:
- System Informer
- Process Lasso
- ParkControl
- Other process-priority or CPU-management utilities
These applications can monitor or alter how Windows handles running programs.
Hardware-Monitoring Software
Check for applications such as:
- MSI Afterburner
- RivaTuner Statistics Server
- GPU monitoring utilities
- CPU monitoring utilities
- Manufacturer performance-control software
Temporarily closing these programs is a useful diagnostic test.
Game Overlays
Also test AION 2 without unnecessary overlays.
If you normally run several monitoring or overlay applications simultaneously, close them before starting the game.
The important point is to change one group of software at a time. That makes it much easier to identify the actual conflict.
3. Check Cheat Engine, WeMod and Similar Tools
Game-modification and memory-editing software deserves special attention when troubleshooting 0xE0000027.
If you have Cheat Engine, WeMod or similar software installed, the safest first test is:
- Close the program completely.
- Uninstall it if you do not need it.
- Restart Windows.
- Launch AION 2 again.
Some players have reported the error appearing even when this type of software was not actively being used when AION 2 was launched.
This is particularly important because closing an application does not necessarily remove every component it installed.
If the error disappears after removing one of these programs, you have a strong indication that it was involved in the startup conflict.
That does not mean Cheat Engine or WeMod is responsible for every occurrence of 0xE0000027.
Avoid downloading random third-party "NC Guard fix" tools to compensate for the problem.
4. Check Memory-Cleaning and Optimization Tools
Some PC optimization setups automatically run memory-cleaning or process-management tasks in the background.
Check whether you use:
- Standby-memory cleaners
- Automatic RAM optimization
- EmptyStandbyList
- Scheduled memory-cleaning tasks
- CPU optimization utilities
- Automatic process-priority tools
A program does not necessarily have to be visible on your desktop to affect AION 2.
Check Windows Task Scheduler
If you use an automated memory-cleaning utility, open Task Scheduler and check whether it has a task that runs automatically.
If you find a memory-cleaning task, temporarily disable the task and restart Windows before testing AION 2 again.
Do not delete Windows system tasks simply because their names look unfamiliar. Only change tasks that you recognize as belonging to software you installed.
5. Temporarily Disable Hardware and RGB Utilities
Peripheral software can also be worth testing.
Examples include:
- Razer Synapse
- ASUS Armoury Crate
- Corsair iCUE
- MSI utilities
- RGB lighting controllers
- Hardware-monitoring applications
You do not necessarily have to uninstall these programs.
For troubleshooting, close the applications and prevent their optional overlays or monitoring components from running, then restart Windows and test AION 2.
If the game launches normally, re-enable the software and test again.
This helps determine whether the problem is connected to a particular utility rather than AION 2 itself.
6. Verify AION 2 Game Files
If closing potentially conflicting software does not help, verify the AION 2 installation.
For the Steam version:
- Open Steam.
- Go to Library.
- Right-click AION 2.
- Select Properties.
- Open Installed Files.
- Select Verify integrity of game files.
- Wait for the process to finish.
- Restart Steam and test AION 2 again.
File verification is a useful integrity check, but it should not be treated as a guaranteed 0xE0000027 fix.
If the game files are healthy and the error continues, move back to checking background software instead of repeatedly verifying or reinstalling the game.
7. Use a Windows Clean Boot
If you cannot determine which application is causing the conflict, a Windows clean boot can be a much better diagnostic tool than uninstalling programs at random.
The purpose is simple:
Does AION 2 launch when most third-party startup services are prevented from running?
If AION 2 launches normally after a clean boot, that strongly suggests that a third-party application or service is involved.
You can then restore startup items gradually until the problem returns.
Why This Helps
Suppose AION 2 works in a clean boot.
You can then re-enable:
- Hardware utilities
- Monitoring software
- RGB software
- Process-management tools
- Other startup applications
Testing them in groups makes it easier to isolate the conflict.
Once you identify the application, you can decide whether to close, update, disable or uninstall it when playing AION 2.
8. Save the NC Guard Error Log
If AION 2 continues to display 0xE0000027, use the Save option available in the NC Guard error window if it is presented.
Keep the resulting log rather than repeatedly trying random fixes.
The log can be useful when contacting official support because it provides additional information about what happened during the failed startup.
At this point, include useful details such as:
- Windows version
- GPU model
- AION 2 version
- Steam or launcher version
- The exact error code
- When the game closes
- Whether a clean boot changes the result
- Which background programs were running
- Whether reinstalling or verifying the game changed anything
This makes a support request much more useful than simply reporting that AION 2 crashes.
If AION 2 Still Closes Without 0xE0000027
Do not assume every AION 2 startup crash has the same cause.
If the game closes without displaying 0xE0000027, you may be dealing with a different problem.
For example, there are separate reports involving:
- GPU crashes
- GPU Crash Dump messages
- Black screens
- Complete system freezes
- Driver crashes
- Connection problems
- Launcher or account errors
Those problems require different troubleshooting steps.
Likewise, an account or feature-access problem is different from a Windows startup conflict. If AION 2 launches normally but features such as the Market remain unavailable, check the separate progression and account requirements rather than treating the issue as an NC Guard crash.
Once you are back in the game, you can also use Combat Analysis to test actual damage and skill performance instead of relying only on Combat Power.
What Not to Do
When troubleshooting 0xE0000027, avoid making several major changes at once.
That makes it almost impossible to determine what actually fixed the problem.
Avoid These Approaches
- Random registry edits
- Downloading unofficial NC Guard replacement files
- Deleting unknown Windows drivers
- Permanently disabling Windows security features
- Random BIOS changes
- Reinstalling Windows
- Disabling every Windows service
- Installing third-party "game repair" programs
- Assuming every overlay is responsible
- Assuming one reported fix works for every PC
In particular, do not disable security or anti-cheat components simply to make AION 2 launch.
Start with reversible changes and isolate the conflicting application instead.
FAQ
What is AION 2 error 0xE0000027?
It is a startup error that can occur during AION 2's protected launch process. Different software or system configurations can potentially produce the same error, so there is not one universal fix.
Why does AION 2 close shortly after launching?
If AION 2 starts and then closes shortly afterward with 0xE0000027, check background software that can monitor, modify or manage processes. Game-modification tools, memory utilities, process managers and hardware-monitoring software are especially worth testing.
Can Cheat Engine cause AION 2 0xE0000027?
Cheat Engine has been reported by AION 2 players as a possible trigger for this error. If you have it installed, removing it and restarting Windows is a reasonable troubleshooting test. It does not mean that Cheat Engine is responsible for every occurrence of 0xE0000027.
Can MSI Afterburner cause AION 2 to close?
Hardware-monitoring and overlay applications such as MSI Afterburner are worth temporarily disabling when diagnosing this error. If AION 2 launches after you close the software, test again after re-enabling it to determine whether there is an actual conflict.
Do I need to reinstall AION 2?
Not necessarily. Because 0xE0000027 can be associated with software running alongside the game, checking background applications should come before a full reinstall.
What if AION 2 still crashes after a clean boot?
If AION 2 still produces the same error with third-party startup software disabled, verify the game files and save the NC Guard error log. You can then provide those details to official AION 2 support.
Final Takeaway
If AION 2 closes shortly after launch with AION2.exe - 0xE0000027, do not immediately assume the game installation is broken.
Start by checking what is running alongside AION 2.
The most useful troubleshooting order is:
- Restart Windows and launch AION 2 clean.
- Check game-modification, process-management and memory-cleaning software.
- Temporarily disable monitoring, RGB and overlay utilities.
- Verify the AION 2 installation.
- Use a Windows clean boot to isolate third-party software.
- Save the NC Guard log if the problem remains.
The key is to change one thing at a time. That gives you a much better chance of finding the actual conflict instead of repeatedly reinstalling the game without knowing what caused the crash.
Once AION 2 is launching normally again, you can move on to optimizing your in-game progression. For example, see AION 2 Odyle Energy: When to Spend It and How to Avoid Wasting It for the level-45 progression system, or AION 2 Combat Analysis: How to Check Your Damage and Best Skills if you want to test your actual combat performance.
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