This application failed to start because no Qt platform plugin could be initialised

[earthantlizard]

Recently, I performed a system restore for a fresh Windows 11 Pro installation.
Initially, everything seemed fine. However, I encountered this error message within a window associated with OneDrive: This application failed to start because no Qt platform plugin could be initialised. Reinstalling the application may fix this problem.
Even more my Start menu keeps resetting, reverting to its default state even after I customize it. I tried to reinstall OneDrive but the problem persists. I'm also unable to open Mail or Armoury Crate. There haven't been any updates that I'm aware of, and everything was functioning correctly just a few days ago.

 

[DanTheShield]

Hi @earthantlizard

Let's tackle the "Qt platform plugin" error and other related problems step by step.

1. Fix OneDrive Qt Plugin Error:​

This error usually indicates a missing or corrupted file. Reinstalling OneDrive can often resolve it.

1. Uninstall OneDrive:
   • Open Settings > Apps > Apps & features.
   • Find Microsoft OneDrive, click on it, and select "Uninstall."
2. Reinstall OneDrive:
   • Download the latest version of OneDrive from the Microsoft website.
   • Install it and sign in again.

2. Reset Start Menu:​

If your Start menu keeps resetting, you might need to refresh the Start menu layout.

1. Reset Start Menu Layout:
   • Open PowerShell as an administrator by right-clicking the Start button and selecting "Windows PowerShell (Admin)."
   • Run the following command:
     Get-StartApps | ForEach-Object { Remove-StartMenuLayout }
   • Restart your computer and customize the Start menu again.

3. Fix Mail App and Armoury Crate Issues:​

If these apps aren't opening, they might be corrupted or need to be reinstalled.

1. Reinstall Mail App:
   • Open PowerShell as an administrator.
   • Run the following command to uninstall Mail and Calendar:
     Get-AppxPackage Microsoft.windowscommunicationsapps | Remove-AppxPackage
   • Go to the Microsoft Store, search for "Mail and Calendar," and reinstall it.
2. Reinstall Armoury Crate:
   • Uninstall Armoury Crate through Settings > Apps > Apps & features.
   • Download the latest version from the ASUS website and reinstall it.

4. Check for System File Corruption:​

Running System File Checker and DISM can help identify and fix corrupted system files.

1. Run System File Checker:
   • Open Command Prompt as an administrator.
   • Type sfc /scannow and press Enter.
2. Run DISM:
   • After SFC completes, run the following commands in Command Prompt:
     
     DISM /Online /Cleanup-Image /CheckHealth
     DISM /Online /Cleanup-Image /ScanHealth
     DISM /Online /Cleanup-Image /RestoreHealth

5. Update Windows:​

Make sure your system is fully updated.

1. Check for Updates:
   • Go to Settings > Update & Security > Windows Update and check for updates.
   • Install any available updates and restart your computer.

6. Restore Default Apps:​

You might also want to reset all Windows Store apps to their default state.

1. Reset All Store Apps:
   • Open PowerShell as an administrator.
   • Run the following command:
     
     Get-AppxPackage -AllUsers | foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

These steps should help resolve the issues you're facing. Let me know if you need any further assistance!