Understanding Fortnite's 'Checking for Updates' Error on Windows 10/11

Fortnite, the globally popular battle royale game by Epic Games, delivers immersive gaming experiences to millions. Yet, some Windows 10 and Windows 11 users encounter a persistent and frustrating issue: the game stalling indefinitely on "Checking for Updates" during startup or update attempts. This error prevents gamers from accessing Fortnite, causing significant frustration and disruption.

Background and Context

The "Checking for Updates" error isn't unique solely to Fortnite but is symptomatic of broader underlying problems affecting app and game updates on Windows PCs. Fortnite relies on several background services, including the Epic Games Launcher, Easy Anti-Cheat mechanisms, and proper networking functions. Disruptions or incompatibilities within any of these components can lead to the game being stuck at this update verification stage.

Additionally, recent discoveries have linked some update-related Windows issues to Microsoft's underlying app frameworks, resulting in cryptic errors that impact software updates, including those dependent on Microsoft Store infrastructure.

Technical Causes and Contributing Factors

Several technical reasons cause Fortnite's update check to hang on Windows 10 and 11:

  • Corrupt or misconfigured DNS settings: Faulty DNS configurations can prevent the launcher or game from communicating correctly with Epic Games' servers.
  • Easy Anti-Cheat (EAC) issues: As a critical anti-cheat platform, EAC sometimes faces compatibility issues with Windows updates or driver conflicts, leading to errors or stalled update checks.
  • Epic Games Launcher glitches: Corrupted launcher files or outdated versions can disrupt the update process.
  • Windows system bugs affecting app updates: Certain Windows versions experienced bugs related to the Windows App SDK (WinAppSDK) version 1.6.2, which impacted update mechanisms for packaged applications, including gaming clients.

Recent Windows Update Issue Linked with App Updates

In late 2024, a specific bug within the WinAppSDK version 1.6.2 was identified as a root cause for widespread app update failures on Windows 10. This flaw would manifest as vague errors like "Something happened on our end," and also contribute to update process freezes in various applications.

Microsoft released an optional cumulative update, KB5046714, targeting Windows 10 (version 22H2), which addressed these foundational app update issues. Installing this update has been reported to resolve many update-related errors by restoring proper communication and lifecycle management for modern Windows apps. Windows 11 users received parallel fixes in updates like KB5046740.

How to Fix the 'Checking for Updates' Error in Fortnite

1. Install Necessary Windows Updates

Ensure your Windows 10 or Windows 11 installation includes the latest updates, particularly KB5046714 (Windows 10) or KB5046740 (Windows 11), to fix underlying app update framework bugs.

  • Open Settings > Update & Security > Windows Update.
  • Click Check for updates.
  • Locate and install the optional updates if available.
  • Restart your computer.

2. Verify and Reset DNS Settings

Faulty DNS settings can block Fortnite from connecting to update servers.

  • Open Command Prompt as Administrator.
  • Run INLINECODE0 to clear the DNS cache.
  • Optionally, set DNS servers to public options like Google DNS (8.8.8.8, 8.8.4.4).

3. Repair or Reinstall Easy Anti-Cheat

Easy Anti-Cheat issues often cause launcher hang-ups.

  • Navigate to Fortnite’s installation folder.
  • Locate the Easy Anti-Cheat setup executable, and run the Repair option.
  • If problems persist, uninstall then reinstall Easy Anti-Cheat.

4. Update or Reinstall Epic Games Launcher

Launcher corruption can stall updates.

  • Fully close the Epic Games Launcher.
  • Delete its cache from INLINECODE1 .
  • Reinstall the launcher from the official Epic Games website.

5. Run System File Checker and DISM

Corrupted Windows system files may cause update check failures.

  • Open Command Prompt as Administrator.
  • Run INLINECODE2 and wait for completion.
  • Run INLINECODE3 .
  • Restart your PC.

6. Temporarily Disable VPNs, Firewalls, or Security Software

Security software or VPNs might block game connections. Temporarily disable these to test if they cause the error.

Implications and Impact

This error highlights the complex dependencies modern games like Fortnite have on operating system components, networking, and third-party services like Easy Anti-Cheat. For Windows 10 users especially, the transition toward Windows 11 and its evolving app framework brings new challenges.

The release of patches like KB5046714 underscores the importance of staying current with optional Windows updates that target reliability improvements, not just security fixes. For the gaming community, resolving such update stalls is critical for gameplay continuity and user satisfaction.

Developers and IT professionals should be aware of the cascading effects that foundational SDK issues can create across large app ecosystems, emphasizing the need for robust testing and quick remediation mechanisms.

Conclusion

If Fortnite gets stuck on "Checking for Updates" on your Windows 10/11 PC, addressing both Windows system updates and the Fortnite-specific components like Easy Anti-Cheat and the Epic Games Launcher is essential. Following the outlined steps will restore update functionality, allowing you to get back into the game without further delay.

This article combines known technical insights and recent patch information to provide a comprehensive fix and understanding of Fortnite's update issues on Windows PCs.