New Vegas Error Code 80 is a problem that can occur when trying to launch the game. This error is caused by a file being missing or corrupt.
Other common searches for this error include:
- new vegas failed to start error code 80
- new vegas error code 80
1. Try running the game as an administrator
- Open the Start Menu and type "cmd" into the search bar.
- When the Command Prompt window appears, type in "net stop vegas" and press Enter.
- Next, type in "net start vegas" and press Enter.
- Finally, type in "regedit" and press Enter.
- In the Registry Editor window, navigate to the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
- In the Winlogon subkey, find the "Userinit" string value and delete it.
- Close the Registry Editor window.
- Restart the computer.
2. Verify the game files through Steam
- Launch Steam and sign in.
- In the top left corner of the Steam window, click the Games tab.
- Under the list of games, click the Verify Files button.
- In the dialog that appears, make sure that the game files are properly installed and are up to date.
- If the game files are not up to date, click the Install Update button.
- After the update is installed, click the Verify Files button.
- In the dialog that appears, make sure that the game files are properly installed and are up to date.
- If the game files are not up to date, click the Install Update button.
- After the update is installed, click the Play button to launch the game.
3. Delete the FalloutPrefs.ini file and let the game regenerate it
- Open the FalloutPrefs.ini file in a text editor.
- Find the line that reads "bInvalidateOlderFiles=" and delete it.
- Save the file.
- Launch the game and allow it to regenerate the preferences.
If you didn't find success with an option above, then try:
- Edit the FalloutPrefs.ini file and change the bInvalidateOlderFiles setting to 0.
- Use the 4gb Fallout New Vegas Mod.
- Try running the game in compatibility mode for Windows XP.
- Try running the game in compatibility mode for Windows 7.
- Try running the game in compatibility mode for Windows 8.
- Try running the game in compatibility mode for Windows 10.
- Try running the game on a different computer.