How to fix League of Legends Error 004

Are you getting League of Legends Error 004 while updating the game then you have arrived at the right place. Well undoubtedly the issue is extremely frustrating but as per the reports, some users have managed to get past the error just by restarting the game client and trying to patch again but for some users it was as tough as climbing a hill. And if you are also struggling hard to resolve the error keep reading the blog till the end.

Before proceeding with the solutions we want to highlight all the possible causes that lead to the above mention error. So without any further delay let’s gets started.

Reason 1: You are likely to face the above mention error because of the interference of the antivirus program while launching the game.

Reason 2: Unstable Internet Connection

Reason 3: If the game client is corrupt or broken on your PC.

Reason 4: Outdated Windows OS and Drivers

Reason 5: Misconfigured Game Installation Files

Reason 6: Lack of Space on your Computer (the act of including additional codes to enhance gaming) requires some space.

Reason 7: The game lacks administrative privileges

Reason 8: Corrupted/Missing Game Files

Troubleshooting Methods for League of Legends Error 004

Method 1: Preliminary Tips

We have enlisted some basic methods to resolves the error, in case if these preliminary solutions didn’t works for you then you can proceed with other methods.

  • Restart PC

First of all we suggest you to restart your computer it will fix all the minor glitches, to do the same follow the below mention guidelines:

Step 1: Go to Windows Power User Menu by pressing Windows + X keys at the same time

Step 2: Then select Shut down or Sign Out

Step 3: Lastly tap on Restart

  • Check Server Status

As per the reports you are likely to face the above mention issue due to server related issues, in such case it is advised to check the server status. To do so you need to visit the official Riot Server Status Update Page>Scroll down and select League of Legends>select your Region and Language to continue>now you can see the notifications for server & errors. If you found any then the only solution is waiting till the server gets back to work.

  • Restart Router

You can also restart your router as several users have claimed that they managed to get past the error just by rebooting their router.

Method 2: Close All the Background Processes

If the preliminary methods didn’t works for you then we suggest you to close all the background processes. As the background processes will consume more RAM and the performance of the game will slow down. So kindly close all the unnecessary background processes.

Method 3: Run the Game as an Administrator

In order to resolve the League of Legends Error 004 we suggest you to run the game as an administrator. To do so you can follow the below mention instructions:

Step 1: First of all Right-Click on League of Legends shortcut on the desktop>then select the Properties option

Step 2: Navigate to the Compatibility tab and then check the option Run this program as an Administrator

Method 4: Clear DNS Cache & Data

Several users have claimed that removing the DNS Cache and data on their PC and to do so follow the below mention instructions:

Step 1: Press Windows key and type in cmd > then click on Open

Step 2: Then type the following commands one b one ad then press Enter key

ipconfig/flushdns

ipconfig/registerdns

ipconfig/release

ipconfig/renew

netsh winsock reset

Step 3: Then wait for some time and after that restart your PC.

Method 5: Update Windows

In the very beginning of the this blog we have mentioned that you are likely to face the issue because of outdated Windows, so in order to get past the issue kindly update your Windows to the latest version. It will not only provides new features but also compatible with the game.

Method 6: Free up Space on your Hard Drive

If the hard drive where your game is installed is running out of space, the patches or updates cannot be saved or installed properly and thus leads to the above mention error.

In order to free up your drive, use Windows built-in Disk Cleanup Utility to proceed:

Step 1: Right-Click the drive you desire to clean up and choose Properties>Navigate to General tab and click Disk Cleanup button

Step 2: In the next window, check the files you want to delete and tap on OK

Note that you can also click Cleanup System Files to remove certain system files as per your requirements.

If you cannot spare enough space for your hard drive by disk clean up then you can also try uninstalling certain unnecessary programs installed on your drive.

Method 7: Temporarily Disable Antivirus Software

If you are still struggling with League of Legends Error 004 then try to disable your antivirus program to fix the issue. You can follow the below mention instructions to disable Windows Defender:

Step 1: Right-Click Start button and choose Settings>Go to Update & Security>Windows Security>Virus & Threat Protection

Step 2: Now click Virus & threat Protection Settings>when you get the following page, toggle off the button in Real Time Protection to disable Windows Defender temporarily

Method 8: Set Google’s DNS

You are likely to face the above mention error if there are issues with your internet connection and as per the reports several users have reported that they fix the issue just by changing the DNS Settings, so you can also try this method.

Here’s how:

Step 1: On your keyboard press Win + I keys to open Settings>Navigate to Network & Internet>Status>Change Adapter Options

Step 2: Then right-click the network connections you are using presently and choose Properties from the context menu>Under the Networking tab, choose Internet Protocol Version 4 (TCP/IPv4) and tap on Properties

Step 3: Then check Use the following DNS Server Addresses and then enter Google Public Server address:

 

Preferred DNS server: 8.8.8.8

Alternate DNS server: 8.8.4.4

Step 4: Tap on OK to save the changes and then exit the Settings

Method 9: Delete League of Legends_air_client Folder

In this method we suggest you to delete a specific folder in file Explorer. It will remove the corrupt components of your system associated with the game.

Here’s how:

Step 1: To open the File Explorer press the Win + E keys at the same time>now navigate the below mention path

C:\Riot Games\League of Legends\RADS\projects\lol_air_client

Note that you may also find lol_air_client folder in some other location too. You need to pay a bit extra attention to finding the folder.

Step 2: After that tight-click on the lol_air_client folder and tap on Delete option>once you are done with this simply restart the PC.

Method 10: Update Drivers

It is one of the most effective methods to fix the above mention error ad that is updating the graphics drivers. Graphic Drivers are responsible for the proper functioning of all the graphics intensive tasks but of you have corrupted/incompatible drivers then you are likely to stuck with the several gaming errors and League of Legends Error 004 is one of them. So considering this situation we strongly recommend you an automatic Driver Tool will update your drivers with the latest version ad will help you performing all the graphic intensive tasks smoothly.

⇑Get Driver Tool from Here⇓

Method 11: Reinstall LOL

You can also reinstall league of Legends and to do the same follow the below mention instructions and then check if the issue resolved or not:

Step 1: First of all open Control Panel>Navigate to Programs>Programs and Features>select League of Legends application from the list and select Uninstall/Remove, after that follow the on-screen instructions to uninstall it.

Step 2: Now navigate to the directory where your LOL is installed and delete all the setup files you used to install the game.

Step 3: Finally Restart your Computer and then download the latest version of the game from the official Website

Bottom Line

That’s all guys, we really hope that you liked he blog and it was helpful for you.