Hello
Welcome to the Microsoft Community.
If your Roblox fails to update and prompts “Error Code: 280” (even though checking for updates shows “No updates”), it may be due to a caching issue, a corrupt installation, or permissions restrictions.
You can refer to the following methods to see if they can solve your problem
Force Roblox to update (via official method)
Method 1: Reinstallation via Roblox Client
1. Uninstall the current Roblox client:
Press Win + R and type appwiz.cpl to open Programs and Features.
Find Roblox and right-click to uninstall.
You can also delete the remaining files manually (go to C:\Users\Your Username\AppData\Local\Roblox and delete the entire folder).
2. Reinstall Roblox:
Visit the Roblox website and log in.
Go to any game page and click on the green “Play” button, it will automatically download the latest version of the installer.
Method 2: Clear Roblox Cache
Close all Roblox-related processes (including browsers and clients).
Delete temporary files:
Press Win + R and type %temp% to delete Roblox related folders.
Go to C:\Users\your username\AppData\Local\Roblox and delete the Versions folder (if any).
Restart Roblox.
Thank you for your patience and reading.
Best regards.
Ian Ng - MSFT | Microsoft Community Support Specialist.