Fix #3: Update Roblox installation files. If Roblox is still showing the same crash error, the final solution that you can try is to update certain files in the installation folder.

In your PC’s firewall settings, locate Roblox among the list of installed problems. Depending on your firewall software, look for an option related to changing permissions or settings.

Now, select the Local folder and find the Roblox folder inside Click once on the Roblox folder, making sure not to open it, and press “Shift + Delete” ...

Basic Reinstall: Uninstall Roblox through your control panel (or Apps settings) and then download and install a fresh copy from the Roblox website. This is your first line of defense.

If Roblox is not opening or working correctly on your PC, it could be due to an ongoing server issue that is preventing you from launching the app correctly. So, make sure Roblox servers are not down.