Go in %localappdata% and delete the folder called Plutonium if it's there then try again. If it still shows the same error then try the solutions listed here https://plutonium.pw/docs/update/#fixing-failed-to-check-for-updates

@Bison54 redownload it from https://cdn.plutonium.pw/updater/plutonium.exe try again

@Sampsonn you didn't type your username properly. It's case sensitive

How to fix GPUDriverD3D11 errors? Update your GPU drivers https://www.howtogeek.com/135976/how-to-update-your-graphics-drivers-for-maximum-gaming-performance/ Install Direct X (even if it's already installed) https://www.microsoft.com/en-us/download/details.aspx?id=35 Now restart your PC and try to start the launcher/your game again. If the issue persists then your PC probably doesn't have a Direct X 11 capable GPU but there is a way to bypass that. Download and run DXCpl.exe https://drive.google.com/file/d/1qvWbHrnBVVibYozaO9peXcSS9ovEBMhd/view Click "Edit List..." Click the three dots right of the "enter a process or folder name" field and select "plutonium-launcher-win32.exe" located in C:\Users\Username\AppData\Local\Plutonium\bin (Username is your Windows username) Tick the "force warp" checkbox and select "11_0" from the "feature level limit" dropdown menu Hit OK & try to start the launcher/your game again.

https://plutonium.pw/docs/update/#fixing-failed-to-check-for-updates

@PepeRitroso said in Can Someone explain me this ?: can someone explain me this ? Your lack of knowledge does explain this. Google what CloudFlare is and how it works. (Hint: It's a free proxy service used by million of websites to protect themselves.) You are clearly not here for logical answers but trying to start a witch hunt out of thin air.

@Dss0 Understood, thank you very much for the response! I'll get a pc to play it.

Redist Errors related to D3DCOMPILER_43.dll, XINPUT1_3.dll, D3DX9_37.dll, MSVCP140.dll or VCRUNTIME140.dll are caused by missing redistributable on your system. To fix this a member of the staff created a script that will download and install all the redistributable (redist) required to get Plutonium running. Download and open the script from the link below and let it finish to download and install every redist (Direct X, Visual C++ etc.) Then once it says it's finished you can close it and start your game. https://git.io/redists The speed varies depending on your download speed and on your PC specs. The script is safe so if you get a message from Windows click on "More info" and "Run anyway". You can always right click on it and click edit to see what's inside. If for any reason it doesn't work read below Download and install all the redist below even if you already have them installed Direct X: https://www.microsoft.com/en-us/download/details.aspx?id=35 Visual C++ 2015: https://www.microsoft.com/en-us/download/details.aspx?id=53840 Visual C++ 2015 RC: https://www.microsoft.com/en-us/download/details.aspx?id=52685

Your sentence doesn't make any sense. Record a video or take a screenshot or use https://www.deepl.com/translator

@KL1PZ what you're providing is dangerous and really not useful at all. If you install Windows and redists properly from official websites you don't get those errors. DLL errors are never fixed with random dlls from shady unknown websites. If you have Direct X then you don't have Direct X DLL errors. If you have Direct X DLL errors then install Direct X properly and you won't get them anymore. You don't fix things by placing random dlls manually, you solve the problem at the source instead of patching things here and there without understanding what you're doing. Next time please copy/paste this message if you want to help instead of providing potentially harmful solutions

@spahzed just change the folder? I don't quite understand your plight, this seems real simple. If you accidentally put a folder in your game folder, take it out so that everything is back to normal and proceed to set the MW3 launch on the Pluto Launcher accordingly. If you chose the wrong starting location via the Pluto Launcher, simply go back and set the launching folder correctly.

@Dss0 its about my internet connection .its automatically fixed up. thank you my friend

I really wish it was higher priority, I've managed to get plutonium launching on the Steam Deck, however whenever out and about it's completely unplayable. I don't pay for hotspot data. I just want to enjoy zombies even when my internet is down or I am away from home. I hope they change their mind or manage to complete their other tasks soon.

@ilytwo It didnt worked. So, no plutonium gaming for me?

Mention any antivirus/security tool you have installed even if it's disabled