Some users may face Portal 2 error: “Launcher DLL could not be loaded” when trying to load Portal 2 game. If you are one of those users, you are in the right place to fix the error.

Here are the tips to correct this error:

Delete the Bin folder

Reinstall the game

Solve registry problems

Reinstall DirectX and Microsoft Visual C ++ Redistributable

Provide security permissions to the CSC folder

Delete the Bin folder

The corrupted contents of the Portal 2 game Bin folder could cause the Portal 2 error: “Launcher DLL could not be loaded.” Delete that folder to fix your problem.

Exit the game and the Steam application.

Open any of the following directories found:

C: Program Files Steam SteamApps Portal 2

C: Program Files Steam SteamApps Portal 2

Delete the subfolder named Bin.

Reinstall the game

Portal error 2: “Error loading Launcher DLL” can be fixed simply by reinstalling the game. Follow these steps to perform the procedure:

Press Ctrl + Alt + Delete.

Click Processes and end the Portal 2 process. Confirm the action when prompted.

Click Start | Control Panel.

Click Programs | Uninstall a program.

Select Portal 2 from the list of installed programs and click Uninstall.

Follow the onscreen wizard and restart your computer when done.

Download a new setup and run it again to install Portal 2 on your computer.

Solve registry problems

Problems in the Portal 2 registry paths could cause the error: “Launcher DLL could not be loaded.” Using a Registry Cleaner software, scan the Windows registry and repair any detected problems.

Reinstall DirectX and Microsoft Visual C ++ Redistributable

Portal 2 requires DirectX and Microsoft Visual C ++ Re-distributable to be installed on your computer to run properly. If the installation of these packages is corrupted, you might face Portal 2 error: “Could not load the launcher DLL.”

Visit the Microsoft website and download a new configuration for both tools. Run the downloaded files and follow the instructions on the screen. Reboot the machine when done.

Provide security permissions to the CSC folder

Lack of security permissions for the CSC folder could cause this error. Provide the appropriate security permissions by following the steps below:

Open My Computer.

Double click to open the following directory:

C: Windows

Right click on the subfolder named “CSC” and select Properties.

Click on the Security tab and then on the Edit button.

Provide the appropriate read, write, and access permissions.

Click OK | OK.

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