To fix the “An unexpected error has occurred” issue on Roblox, try running Roblox as an Administrator. Right-click the Roblox icon, select “Run as Administrator,” and confirm with “Yes” in the prompt. This gives Roblox the necessary permissions to function smoothly.
Next, clear the thumbnail cache on your computer. Open the Start Menu, search for “Disk Cleanup,” and launch it. Select your Windows drive, check the “Thumbnails” option, and confirm by clicking “OK” and then “Delete Files.” This step helps remove any corrupted thumbnail data that might be causing the error.
Restarting your computer can also help resolve this issue. Open the Start Menu, click the Power icon, and choose “Restart.” Once your computer restarts, launch Roblox again to check if the error persists.
If you’re using Windows 11, try disabling Memory Integrity. Open the Windows Security app, go to Device Security, and click on Core Isolation Details. Turn off the “Memory Integrity” option and confirm the change. This can resolve compatibility issues that trigger the error.
Lastly, ensure your Windows version is up to date. Go to Settings, select “Windows Update,” and click “Check for Updates.” Install any available updates and restart your computer. This keeps your system optimized and less prone to errors on Roblox.