Eu4 exe системная ошибка

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• #1

EU4 simply doesn’t launch. No error message or anything. Just «Launching the game failed» in the launcher.

The launcher is 2021.3.1 and I already add the launcher as an allowed app under window defender firewall.

Thank you,

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• #2

In the game launcher please set Display mode to Borderless.

THEN go here:

And run the x86 and x64 installers there.

IF that doesn’t help, Has the game ever run OK on this computer? Or never?

IF NEVER:
Install ALL these Microsoft modules:

(run dxsetup.exe after extracting from this download)

Add EU4.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware «Apps Allowed Through» list.

Also if you have installed RivaTuner, RadeonPro, or a gaming VPN app called Evolve, or the MSI Gaming App, or Duet, disable it as it clashes with this game.

IF IT USED TO WORK:
Please do a full **clean** re-install:

— move any valued save games elsewhere
— «uninstall» in Steam-EU4
— manually delete both the Steam/SteamApps/common/EU4 AND Documents/Paradox Interactive/EU4 folders
— re-install game in Steam, run a Steam Verify when done.
— add EU4.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware «Apps Allowed Through» list.
— start the game with no mods active and test

In particular make sure there are no files or folders left under either the Steam EU4 or Documents EU4 locations, before installing again.

Also if you have installed RivaTuner, RadeonPro, or a gaming VPN app called Evolve, or the MSI Gaming App, or Duet, disable it as it clashes with this game.

IF NEITHER OF THOSE HELP:
Please attach your Documents/Paradox Interactive/EU4/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/EU4/logs/ folder, attach system.log , error.log .

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• #3

It doesn’t help. Here are the attachments you need. Thank you.
I can play the game by running directly from EU4.exe

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• #4

If the game runs from eu4.exe then we are back to a launcher problem, although why you can run eu4.exe but it cannot I’m not sure.

What antivirus app do you use? You need to make sure all these apps are in its exceptions lists:

EU4.exe and dowser.exe (in the Steam Eu4 folder)
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/launcher-v2.2021.3.1/paradox launcher.exe
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/bootstrapper-v2.exe

If that doesn’t help, you could try setting them all to run as the Windows Admin user too.

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• #5

It worked after I set all of those apps in exception list. Thank you

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• #6

If the game runs from eu4.exe then we are back to a launcher problem, although why you can run eu4.exe but it cannot I’m not sure.

What antivirus app do you use? You need to make sure all these apps are in its exceptions lists:

EU4.exe and dowser.exe (in the Steam Eu4 folder)
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/launcher-v2.2021.3.1/paradox launcher.exe
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/bootstrapper-v2.exe

If that doesn’t help, you could try setting them all to run as the Windows Admin user too.

I have tried all the steps as indicated in this thread, but with no success. My issue started after upgrading to windows 11, I am wondering if something different may apply for those of us on that OS.

I also can run it through the eu4.exe file, just not the launcher.

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• #7

What antivirus app do you use? You need to make sure all these apps are in its exceptions lists:

EU4.exe and dowser.exe (in the Steam Eu4 folder)
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/launcher-v2.2021.9/paradox launcher.exe
C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/bootstrapper-v2.exe

If that doesn’t help, you could try setting them all (EXCEPT eu4.exe !) to run as the Windows Admin user too.

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• #8

I need help it doesn’t worked. I allowed it through fire wall and I even did a whole clean restart. It still doesn’t work I am panicking pls help.

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• #9

I need help it doesn’t worked. I allowed it through fire wall and I even did a whole clean restart. It still doesn’t work I am panicking pls help.

We don’t even know you have the same problem as the others in this thread. That’s why it is usually best to make your own new thread with full problem history and system details.

What are your exact symptoms please?

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• #10

Same here. Game is not working. I did everything you wrote. I am using win 10 btw.

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• #11

Same here. Game is not working. I did everything you wrote. I am using win 10 btw.

Please start your own new thread, with full problem history and system details, thanks.

If Europa Universalis 4 or EU4 is not launching for you in Windows 10, there are some fixes that can help you. These EU4 fixes can mend your broken executable and the overall system also.

Try them out one by one and do mention any additional tips that has already worked for you. We will add that to the mix.

---

Game Not Launching and Crashing At Startup Fixes

Some EU 4 players are reporting that the game won’t launch or it crashes at launch. These are a few fixes and workarounds that will hopefully make the game run smoother for you.

• If you have Onedrive, disable it and see if that solves the issue.

The first thing that players need to do is disabling fullscreen optimizations. You can manage your steam library by clicking on Manage > browse Local Files > right-clicking Eu4.exe > Properties > Compatibility tab.

If the change is applied, the game will not crash at launch. The crash at the launch of the game can be solved by running the game in borderless fullscreen instead of Fullscreen.

There is a chance that the game will crash at launch if the game does not have admin rights. If you want to run the program as an administrator, go to the game’s install folder and click the Properties tab. The problem will be fixed if the change is applied and the game is launched.

If the above fixes failed to resolve the issue, then your anti-viruses/windows defenders might be blocking the game. You can either exclude the game’s install folder from it or disabling it. The not launching issue of Europa Universalis 4 will be fixed after verification of game files.

---

Crash Fix

This version of Europa Universalis 4 is very unstable. The developers have to restart the game every time someone quits (even to the main menu) so they can test a new build of the game. This is not a bug; it’s a feature! They’re finding and fixing major bugs as fast as they can. This game has a team of active devs, we are assuming!

---

Could Not Start Paradox Launcher, JavaScript Error Fix

Some EU4 Emperor players are reporting that they the following errors when they launch the game.

Could Not Start the Paradox Launcher at C:users(username)AppdataLocalParadox Interactive
CreatFile C:users(username)AppdataLocalParadox Interactivebootstrapper-v2.exe: The system could not find the file specified

or

A JavaScript error occurred in the main process”
Uncaught Exception:
Error: Cannot open C:/Users/user/AppData/Local/Programs/ParadoxInteractive/launcher-v2.2019.10.4/resources/app.asar/dist/main/microworks.node: Error: Access is denied.

or

{“messageId”:”game.steamInitializationFailed”}

These particular EU4 errors are caused by the game’s broken launcher. This can be fixed by deleting the launcher. First, use the Control Panel to delete the “Paradox Launcher v2” if it’s there. Then navigate to the path mentioned below and delete the launcher directories.

C:/users//AppData/Local/Programs/Paradox Interactive/
C:/users//AppData/Local/Paradox Interactive/
C:/users//AppData/Roaming/Paradox Interactive/launcher-v2/
Documents/paradox interactive/.cpatch/

• Delete every directory in Documents/paradox interactive/ that starts with launcher-v2
• Once you’ve done this, launch the game from Steam and it’ll automatically download and install the Launcher.
• Give the game’s exe admin rights, see under “Crash At Startup Fix” to see how to do it.
• For Linux users, delete the directories ~/.paradoxlauncher and “~/.local/share/Paradox Interactive/launcher-v2/” and the file “~/.local/share/Paradox Interactive/launcherpath”.
• As for Mac users, delete the directory “~/Library/Application Support/Paradox Interactive”
• This will fix these errors and you’ll be able to play the game.

---

If the above fixes did not work for you, you can contact the developers at their official pages to reach out. Thanks for dropping by and reading this guide on How to Fix UE4 Not launching for Windows 10.

You can follow us on Twitter and drop a like on Facebook to get the latest update on guides for Mobile Games, PC Games, and Codes List for different games. Got specific suggestions? You can submit them here. Thanks for reading!

As there are many people who have problems to run eu4 after the Manchu update, I compiled a list of all known problems and how to solve them. Please tell me which problems I missed or if I made any mistakes.

Please leave a comment to tell me which specific problem you had and what helped you, so that I can improve this guide. And also tell me how the instructions can be improved or clarified.

Generic troubleshooting tips

These help with many different problems and you can try them if you have a problem which is not listed below or if the solution below doesn’t help.

Verify game files

The easiest thing that you can do is to verify the integrity of game files.

Clean reinstall

Can somebody tell me what the default folders in windows and macOS are and how to access them in a username agnostic way

1. find out where steam installed eu4 (go into the steam library, right click on eu4->properties->local files->browse local files). Remember that folder for 5.

2. unsubscribe from all mods in steam

3. uninstall eu4 from steam

4. exit steam

5. make sure that the folder where eu4 was installed (the one you remembered from 1.) doesn’t exist anymore. If it still exists, delete it with all its contents

6. delete the folder «steamappsworkshopcontent236850» with all its contents. Per default it is in «C:Program FilesSteam» or «C:Program Files (x86)Steam» under windows(can somebody please verify that). Under Linux it is in ~/.steam/steam/ or ~/.local/share/Steam. In macOS it is in «~/Library/Application Support/Steam/» (can somebody please verify that)

7. move/rename the folder «Paradox InteractiveEuropa Universalis IV». This folder is in your Documents folder in Windows and macOS and in ~/.local/share/ in Linux. You can also delete that folder, but it contains your save games, screenshot and locally created mods, which you may want to keep.

8. uninstall the launcher(you can skip this step if your game at least opens the Europa Universalis startup screen after you click play in the launcher). In windows use the windows uninstall function to uninstall «Paradox Launcher v2». Then delete the launcher directories:

   1. C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/

   2. C:/users/<UserName>/AppData/Local/Paradox Interactive/

   3. C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/

   4. Documents/paradox interactive/.cpatch/

   5. Documents/paradox interactive/launcher-v2.2019.10.4/ (this one changes with each update of the launcher)

   6. In Linux the directories are ~/.paradoxlauncher and «~/.local/share/Paradox Interactive/launcher-v2/» and the file «~/.local/share/Paradox Interactive/launcherpath»

   7. In macOS it may be «~/Library/Application Support/Paradox Interactive»

9. start steam and download eu4 again

10. verify the integrity of game files

11. start eu4 from steam without subscribing to any mods

Downgrade to 1.28.3

If nothing else helps, you can go back to version 1.28.3

OS independent issues

GUI is too small

change from borderless fullscreen to fullscreen and reduce the resolution. Or increase the gui_scale in settings.txt

Impossible to set a non-standard resolution

change the resolution in pdx_settings.txt instead of settings.txt

Can’t change the refresh rate to above 60 Hz

try borderless fullscreen or windowed mode. That should use the refresh rate from your OS.

Game crashes on startup(after the launcher)

If this is not caused by one of the windows specific issues below, it can happen if you have broken save games in the save games directory. Try to move all save games somewhere else.

Mods do not work, do not appear, do not update or are duplicated in the launcher

1. unsubscribe from all mods in steam

2. exit eu4, the launcher and steam

3. delete the contents of the folder «steamappsworkshopcontent236850». Per default it is in «C:Program FilesSteam» or «C:Program Files (x86)Steam» under windows. Under Linux it is in ~/.steam/steam/ or ~/.local/share/Steam

4. backup any locally created mods(or mods that you downloaded from outside of steam)

5. delete the folder «Paradox InteractiveEuropa Universalis IVmod». This folder is in your Documents folder in Windows and macOS and in ~/.local/share/ in Linux.

6. delete the file DocumentsParadox InteractiveEuropa Universalis IVmods_registry.json (~/.local/share/Paradox Interactive/Europa Universalis IV/mods_registry.json in Linux)

7. delete the folder DocumentsParadox InteractiveEuropa Universalis IVlauncher-cache . It might be called .launcher-cache in some operating systems. (~/.local/share/Paradox Interactive/Europa Universalis IV/.launcher-cache in Linux)

8. start eu4 again and make sure that it works without mods and that you have the same checksum in the launcher and in the main menu(with 1.29.3 it is 1a2e) and then exit eu4

9. start steam again and resubscribe to your mods

10. wait for the mods to download completely

11. if you have local mods that you want to use, copy them back to «Paradox InteractiveEuropa Universalis IVmod» now

12. start the launcher again

If you use userdir.txt to place your game files in a different folder you may need to follow the instructions from this forum post to get mods to work.

corrupted DLCs

There has been one report that clearing the download cache and then verify the integrity of game files helps. And several reports that doing a clean reinstall helps(see above)

the game starts directly and skips the launcher

reinstalling steam has helped several people. If you don’t want to do that, you should be able to start dowser(.exe/.app) directly.

Windows specific issues

Launcher doesn’t start

Try to run dowser.exe from the game installation folder as an administrator. That allows the game to install missing dependencies. Once you started it successfully you can start it normally from steam. You can also try to run steam as an administrator.

If the launcher says «We had trouble communicating with Steam» or something similar, try to restart Steam or restart your computer. If that doesn’t help, see the next line.

Other launcher problems can be fixed by a clean reinstall(see above). Especially steps 8 and 7 are important for the launcher.

Missing Microsoft libraries (Microsoft Visual C++ 2010 SP1 Redistributable x86, Microsoft Visual C++ 2010 SP1 Redistributable x64, Microsoft Visual C++ 2015 Redistributable Update 3 RC) can also prevent the launcher from running.

And if you have an antivirus or a ransomware protection software, add the launcher to their exception list. If you have Windows Defender(also called Microsoft Defender), add it to the Ransomware «Apps Allowed Through» list(here are instructions for that). If you have bitdefender, add the launcher to the list of ransomware exceptions and «give it access» to «protected files».

can’t accept the EULA

if the launcher starts and asks you to accept the End-User License Agreement, but if you click on continue, nothing happens, that usually means that the file game_data.json can’t be written. This file is in «DocumentsParadox InteractiveEuropa Universalis IV». Access to that file is often blocked by an antivirus or ransomware protection software. You have to add the launcher to its exception list. The next section(Crashes on startup) has a few details on how to do that for bitdefender and windows defender.

If you have no such software, make sure that the folder or the file game_data.json is not read-only.

Crashes on startup(after the launcher)

• if you have an antivirus or a ransomware protection software, add eu4 to their exception list

• if you have Windows Defender(also called Microsoft Defender), add it to the Ransomware «Apps Allowed Through» list.

• if you have bitdefender, add eu4 to the list of ransomware exceptions and «give it access» to «protected files»

• if you have any program that messes with your screen and/or overlays something in your game, try to disable them. Programms which are known to be problematic are:

  • RivaTuner Statistics Server

  • RadeonPro

  • a gaming VPN app called Evolve

  • MSI Gaming App / MSI Afterburner

  • Duet

• update your graphics driver

• install libraries from Microsoft: Microsoft Visual C++ 2010 SP1 Redistributable x86, Microsoft Visual C++ 2010 SP1 Redistributable x64, Microsoft Visual C++ 2015 Redistributable Update 3 RC and directx

• if you are on windows 7 or 8, try to manually install MS patch KB4019990

• if you are on windows 10, try to uninstall KB4515384(this might not be a good idea)

• if you configured eu4.exe to run as administrator, also set dowser.exe to run as administrator. Or deactivate the run as administrator for eu4.exe. (you can change that setting in properties>compatibility>change settings for all users>check «run this program as administrator)

• sometimes it helps to run the game in a different mode(windowed, borderless fullscreen or fullscreen). If the launcher doesn’t have the option to change that, you have to edit settings.txt. windowed is fullScreen=no and borderless=no, borderless fullscreen is fullScreen=no and borderless=yes, and normal fullscreen is fullScreen=yes and borderless=no

• disable «Fullscreen optimization»: right click the game exe >> compatibility >> disable fullscreen optimizations

• make sure that your harddisk is not full

• Microsoft OneDrive(if you have it) synchronizes the Documents folder per default which contains the save games and settings files. That may use up your quota and prevent changes to your settings files afterwards which would prevent the launcher from starting your game

• If you have a AMD Radeon graphics card, disable the anti-lag feature for eu4:

  • Right Click on desktop, select AMD Radeon Software

  • Select the Gaming tab and then Europa Universalis IV

  • Disable Radeon Anti-Lag

GUI is too small or mouse cursor to big

change the scaling option for eu4 by right clicking on eu4.exe, select Properties, select the Compatibility tab and then check «Override high DPI scaling behavior» and try the different values in the select box below

Linux specific issues

the game doesn’t start when using Wayland

There is at least one bug in Wayland which prevents the game from starting. As a workaround you can select a different session when you log in(on Fedora this would be called gnome-xorg). Your distribution should offer a way to change that permanently(Instructions for Fedora, can be found here).

Another workaround is to disable multisampling by editing «~/.local/share/Paradox Interactive/Europa Universalis IV/settings.txt» and changing the line which starts with «multi_sampling» to «multi_sampling=0»

launcher doesn’t start(opens a window for a short time and then closes before displaying any content)

This should be fixed with hotfix 1.29.2.

Set your launch options in steam to

LD_PRELOAD=/usr/lib/libc.so.6 %command%

You may have to specify the path where libc.so.6 is on your system. But it probably doesn’t matter. For me it also works if I use an empty LD_PRELOAD:

LD_PRELOAD= %command%

One person also reported that they had to remove «noexec» from the mount options for /tmp. You probably don’t have to worry about that if you didn’t change the mount options manually.

Or is noexec for /tmp the default on any Linux distributions?

macOS specific issues

launcher doesn’t start

• Make sure your game is already installed

• Press shift-command-G and enter «~/Library/Application Support/Paradox Interactive» («~/library» alone will suffice, but you’ll have to navigate manually within the folder)

• Erase everything you see in the Paradox Interactive folder

  • Alternatively you can use this command in the Terminal: rm -r ~/Library/Application Support/Paradox Interactive

• Launch Steam

• Click «Play» on the Steam Client’s game page.

Issues for which I don’t know a solution currently

the game always crashes on the same date

This should be fixed by the 1.29.2 hotfix

this seems to happen if you continue a save game from 1.28.3. Possibly this is caused by the Koxinga event. If you still have a backup of the save game from version 1.28.3, you can go back to that version. You can also try to prevent the Koxinga event by colonizing Taiwan or by somehow keeping Ming above 600 dev.

the game is very slow after the update

The devs don’t know what is causing this and asking for reports in the bug report forum. That way they can find out what the people who have this problem have in common

Edits: several edits, but I didn’t keep track of what I changed when

2019-10-05: add section «the game starts directly and skips the launcher» and added a note that the crash on the same date was fixed in 1.29.2

2019-10-16: improved the clean reinstall step 8(launcher)

2019-10-19: solution for launcher doesn’t start on macOS

2019-11-01: solution for EULA not clickable

2019-11-09: fix for mods not working if userdir.txt is in use. Update clean reinstall to explain when a launcher reinstall is not needed

2019-11-22: add more things to launcher doesn’t start; And remove suggestion to uninstall KB4515384, because I have not heard that it helped anybody since I made this post and it might cause further problems

2019-12-08/09/12/18: improved the mods do not work section

2019-12-20: add a section for Linux users who use Wayland

2019-12-25: «We had trouble communicating with Steam» can maybe be fixed by restarting steam

2019-12-28: add information about full harddisk/onedrive

2020-01-02: radeon anti-lag causes problems on windows

2020-01-04: update wayland information for linux

2020-01-21: improve mods do not work section slightly