Valorant Error Code 66: How to Fix It

Fix Error Code 66 Valorant: Why you are getting the Error Code and how to Fix It.

Updated on Aug 23, 2023
Fact checked by Anthony Clement |
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Valorant Error Code 66: How to Fix It

Every game has its pros and cons. The cons are more memorable, coming in as bugs and errors. Not even popular releases are safe from this exception, such as Genshin Impact. Riot Games’ Valorant game does not differ from this rule, showing the player base bugs and errors consistently with error codes.

One of these error codes is the Valorant Error Code 66. If you have encountered this error code, do not worry as here you will learn why you are getting it and how to fix Valorant Error Code 66.


The Reason behind Valorant Error Code 66

The Valorant Error Code 66 is a bit hard to understand, but knowing the reason behind it is key to know what solution might work best to fix it on your Windows PC. On the official Riot Games support site banner it is stated that the reason behind the Valorant Error Code 66 is due to “ContentIndexInitFailure”. The Valorant game runs on background processes, and what this essentially means is during the startup process, something went wrong with processing the game content properly.

The first reason this might happen is if a bad start of the Riot Client was performed. The Riot Client has been known to cause a lot of error codes in the game, so it’s no surprise it can cause the Valorant Error Code 66.

Another reason for the appearance of Valorant Error Code 66 might be with the Riot Vanguard, more specifically with the VGC service that it runs in the background. The issue with this anti-cheat system is that it is one of the best anti-cheat systems out there, but it runs notoriously behind the scenes. So if the Riot Vanguard recognizes the game content as bad, it can cause the Valorant Error Code 66 to appear, especially with a bad VGC service start.

Knowing why you are getting the Valorant Error Code 66 is a must, so next up you will know why every solution might fix your issue. So let’s not waste any more time and jump into the solutions!

How to Fix Valorant Error Code 66

Restart Riot Client

The first solution you can try out to fix this issue, that even Riot Games themselves recommend you try out first, is to restart the Riot Client. The Riot Client causes a lot of error codes, especially for gamers with a bad Windows PC.

To do this easy fix and restart the Riot Client, you will first open up Task Manager by pressing Ctrl+Shift+Esc. Select the Processes Tab above and locate the Riot Client. Once you locate the Riot Client, select it and click on End task to close off the Riot Client process. You can also end up other related game processes to Valorant, which can increase the chances of fixing Valorant Error Code 66.


If restarting the Riot Client did not help you fix the issue with Valorant Error Code 66, no worries and just follow up on the next solutions!

Change Startup Type of VGC Service

The VGC service that the Riot Vanguard runs in the background can cause the Valorant Error Code 66. In this situation, you should change the startup type of the VGC service. Much like with the session service, if the VGC service does not start up as it should, Error Code 66 might appear.

To do this, firstly make sure you have closed off Riot Vanguard and Riot Client from the Task Manager (Ctrl+Shift+Esc). You can also check the System Tray (arrow pointing upwards below on Windows Taskbar), and if you see the Riot Client or Riot Vanguard, right-click them and close them off. Then click the Windows key + R (Win+R) on your keyboard, which should open the Run window. Type in “services.msc”, and once the Services window opens up, search for the “vgc” service. Once you locate it, right-click it and select Properties. In this tab, change the Startup Type from the settings to Automatic, click on Start and select OK.


Restart your PC and you should be able to play the Valorant game free of Error Code 66! Though if this did not help you out either, then the last solution you can do is

Reinstall Riot Vanguard

The last but not least solution you can try to fix this issue with Valorant Error Code 66 is to reinstall Riot Vanguard. Running at the core of your Operating System, no wonder it can cause a lot of error codes to appear, including Valorant Error Code 66. What you should consider is this solution works on rare occasions, but players have reported it has helped them fix Valorant Error Code 66, so here is how you can reinstall Vanguard:

  1. Make sure to restart Valorant, close off the Riot Client and Riot Vanguard from the Windows Taskbar and System Tray option
  2. Go to the Search Bar below, search for Command Prompt, right-click it and run it as an Administrator
  3. Type in the following commands one by one:
  • “sc delete vgc”, press Enter and
  • “sc delete vgk”, press Enter
  1. Restart your PC
  2. Once your PC boots up again, go to the Search Bar below, search for This PC, open it up and locate yourself to the Program Files folder, which should be in the C partition (“C:\Program Files”)
  3. Locate the Riot Vanguard folder, and once you do, right-click it and Delete it
  4. Open the Riot Client, this should automatically start reinstalling Vanguard
  5. Once the reinstallation is finished, restart your PC


While you are waiting for Valorant to reinstall, you may want to get the opportunity to earn Riot Points at 0 cost at freecash. We even have the best freecach code for you to get a nice bonus.

If this did not fix your Valorant Error Code 66 either, then...

Contact Riot Support

The Riot Support team is full of professionals looking out to help every player with any problem they may face. If your Valorant Error Code 66 still persists, you can submit a ticket to the support team here.

Be it a problem with the Riot ID, a network issue, a platform issue, or even problems with the party system, error codes in Valorant can appear for many reasons towards many users. If you have encountered the Valorant Error Code 67, you can check it out here. Though if you want to check out solutions for other error codes, you can visit the Valorant Error Code Hub.

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