Fix Roblox Error 403 Authentication Failed in Windows 11 or 10

7 ways to solve Authentication Failed Roblox Error 403 in Windows 10 or 11.

Roblox Error 403

In this diverse Roblox environment, game flexibility enables a player to be a designer who may provide hours of entertainment. However, some users report seeing Roblox Error 403 in Windows 11 and 10 as well.

When you get the concerned error and click on the link, it implies you don’t have the authentication to access that page, and the page content is hidden. The causes for it may be numerous, including strong antivirus software, your IP address being blocked from accessing a specific website or being blacklisted, which might be tied to your VPN, or corrupted and damaged files. Full error message is “Authentication Failed Error code: 403 An error was encountered during authentication, please try again“. See – Fix Epic Games Error 500 in Windows 10.

Authentication Failed Roblox Error 403

Here is how to fix Roblox Error 403 Authentication Failed in Windows 11 or 10 –

Way-1: Use the System File Checker Command

System file checker command examines all protected system files and replaces damaged files with a cached version which can aid in resolving Roblox error 403 by following these steps:

  1. Press Windows + Q.
  2. Type cmd into the search bar.
  3. Click Run as administrator to open it.
  4. A user account control may appear; click on Yes.
  5. Type sfc /scannow and then hit the Enter key.
how to fix Roblox Error 403 Authentication Failed in Windows 11 or 10

The process will begin and take a while. When it’s done, restart the computer and look to see if the access is denied error is there.

Way-2: Run Windows Defender Scan

Using Windows Defender usually helps to safeguard your system from potentially dangerous viruses and also helps in the identification of any such that may be causing the Roblox error. Its steps are as follows:

  1. Click on the Start.
  2. Type – Windows security.
  3. Press – Enter.
  4. Choose – Virus & threat protection.
  5. Here, you may select Quick scan or click Scan options.
  6. You will find Full scan, Custom scan, and Microsoft Defender Offline scan.
  7. Select Microsoft Defender Offline scan and then click on Scan now.
Run Windows Defender Scan
  1. The procedure will take some time; wait to conclude.
  2. Follow the recommendations you get through notifications.

Way-3: Change permissions in Registry Editor

Windows registry editor usually makes root-level and administrative-level changes, such as setting up access permissions, changing hardware or software configurations, and diagnosing system errors like Roblox Error 403. However, before clearing or deleting certain registry editor entries you may need to take a complete backup of your PC.

  1. To open the Run dialog box, hit Windows + R.
  2. Now type regedit followed by hitting the Enter key to open the registry editor.
  3. Right-click HKEY_CURRENT_USER and select Permissions from the menu that appears.
  4. Ensure that you have provided the administrator with complete control. (the user name may be unique).
Change permissions in Registry Editor
  1. Steps 3 and 4 must be repeated for the HKEY_LOCAL_MACHINE SOFTWARE folder.

Restart your computer and check for the concerned error, if it still exists check out the next way.

Way-4: Turn Off Antivirus and VPNs

Whether you have any third-party firewalls or antivirus software, you can temporarily disable or delete it to see if that is the cause of the Authentication Failed Roblox error 403. This is particularly useful if you use third-party antivirus software. If they are, you should switch to different antivirus software as soon as possible.

  1. Commonly you will find the icon of antivirus on System tray. So click on up arrow from the taskbar.
  2. From the System tray, right-click on the icon and select Disable.

Furthermore, if you are using a virtual private network (VPN), you may wish to disconnect from it in the event that changing your IP address results in restricted access to the page.

Way-5: Examine Windows Firewall

Windows Firewall, like any other antivirus software, prevents various websites and applications from functioning normally. As a result, sometimes it may restrict Roblox, leading to receiving an error 403 with a denial of access notice.

Check to see whether your firewall prevents access to it or its studio program. If Roblox has been blocked, please unblock it as quickly as possible so you can continue playing games.

For this,

  1. Click on Taskbar search.
  2. Type – control.
  3. Select Windows Defender Firewall.
  4. Click on “Allow an app or feature through Windows Defender Firewall”.
  5. On the next window, select – Change settings.
  6. Find Roblox in the list whether it is allowed or not.
  7. If this is now being shown click on Allow another app….
  8. Select Browse.
  9. Find and select Roblox (.exe file).
  10. Click on Open.
  11. Select Add.
  12. Click on OK.
  13. Now try to launch the Roblox game.

You can see the whole method in Allow Apps to Communicate through Firewall in Windows 10.

If you are logged in as an administrator, try running the game application as the admin. You might have to run it as an administrator if you have not already. To gain access, obtain the password from the actual administrator.

You can get help from – How to Run Program as administrator in Windows 11 (12 Ways). We hope this hack has resolved your error.

Way-6: Remove App Cache

Broken or junk files, in general, cause conflict and may result in Roblox error 403 Authentication Failed. So, you might want to remove these damaged items to remedy this issue to play the game without nuisance. Follow these steps to remove the app cache in Windows 11 or 10.

  1. Hit – Windows + R.
  2. Type %appdata%.
  3. Delete the Roblox folder from the directory and check if the issue still persists or it is fixed.

Way-7: Uninstall and Install Roblox again

It may be convenient to uninstall and reinstall Roblox, as the root cause of the error can be resolved through this process. For that, you may follow these steps:

  1. Press Winkey+I.
  2. On Settings, select Apps.
  3. Locate Roblox and click on 3-dots icon. Select Uninstall and then “Uninstall” again to remove the application.
  4. Now go to the official website of Roblox. Download the setup and install the game.

We expect all the aforementioned ways must have worked in your favor to resolve the inconvenient Roblox error 403 in your Windows 11 or 10.


Way-1: Use the System File Checker Command
Way-2: Run Windows Defender Scan
Way-3: Change permissions in Registry Editor
Way-4: Turn Off Antivirus and VPNs
Way-5: Examine Windows Firewall
Way-6: Remove App Cache
Way-7: Uninstall and Install Roblox again

That’s All!

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Topics:  Windows