How do you fix the error code 42 when installing the game Guild Wars 2?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

Guild Wars 2 is a massively multiplayer online role-playing game developed by ArenaNet and published by NCsoft. It is the sequel to Guild Wars.

The game features a dynamic event system that replaces traditional questing, with the aim of making the game feel more alive.

Error code 42 is a network error that can be caused by a number of things, including intermittent server issues, your internet connection, or your firewall.

Other common searches for this error include:

  • gw2 error code 42:0:9001:4402
  • guild wars 2 error code 42

1. Update your graphics drivers

  1. Open the Control Panel.
  2. Under the Hardware tab, click on the Device Manager.
  3. Under the Display devices section, click on any graphics card that you're having trouble with.
  4. Click the Update Driver button.
  5. Select the appropriate driver from the list that appears.
  6. Click the Next button.
  7. Make sure that the Force installation option is checked.
  8. Click the Finish button.
  9. Restart your computer.

2. Verify that your computer meets the minimum system requirements

To verify that your computer meets the minimum system requirements, you will need to:

  1. Check your computer’s system requirements to see if they meet the minimum system requirements.
  2. If they do not, then you will need to upgrade your computer’s system requirements.
  3. Once your computer meets the minimum system requirements, you can proceed to the next step. To check your computer’s system requirements, you can use a software such as Windows System Requirements Calculator or System Requirements Lab.

3. Delete the "Gw2.dat" file and try launching the game again

  1. Delete the "Gw2.dat" file located in the "My Documents/Guild Wars 2/Data" folder.
  2. Launch the game and attempt to join a guild again.
  3. If the error code 42 still occurs, please consult the Guild Wars 2 Technical Support for further assistance.

4. Run the game in Windowed mode

  1. Click on the "Windowed" button in the top left corner.
  2. Click on the "Settings" button in the top right corner.
  3. In the "Settings" window, click on the "Video" tab.
  4. In the "Video" tab, under "Options," click on the "Windowed Mode" button.
  5. Click on the "OK" button to close the "Settings" window.
  6. Click on the "Play" button to start the game in "Windowed Mode."

5. Try running the game with administrator privileges

  1. Open the Guild Wars 2 launcher and sign in.
  2. Click the "Games" tab and select "Guild Wars 2."
  3. Click the "Options" button in the upper-left corner of the window and select "Game Settings."
  4. In the "Game Settings" window, click the "Advanced" button and select "Run As Administrator."
  5. Click the "OK" button to confirm that you want to run the game with administrator privileges.
  6. Click the "Play" button to start the game.

6. Reset your user interface

  1. Open the "Guild Wars 2" folder
  2. Delete the "user Interface" folder
  3. Copy the "user Interface" folder from the "Guild Wars 2" installation folder to the "user Interface" folder in the "Guild Wars 2" folder that you just deleted
  4. Start the game and log in

Some users might also have success with the following opitons:

  1. Reinstall the game