Star Citizen Error Code 5021 | General Troubleshooting

Star Citizen error code 5021 is a generic installer error that indicates a failure in the launcher’s process, often during a download or update.

It can be caused by a variety of issues, including corrupted game files, network problems, or conflicts with other programs.

Here are some troubleshooting steps to help resolve the error:

1. General Troubleshooting

• Restart the Launcher:

  • Fully exit both Star Citizen and the RSI Launcher, then restart them.

• Run as Administrator:

  • Right-click the RSI Launcher icon and select “Run as administrator.”

• Verify Game Files:

  1. Open and log in to the RSI Launcher.
  2. Go to Settings.
  3. Select the game channel (e.g., LIVE, PTU).
  4. Click the VERIFY button.

• Check Antivirus/Firewall:

  • Ensure that RSI Launcher.exe and StarCitizen.exe are whitelisted in your antivirus and firewall software. Some players have reported issues with specific programs like Avast and Panda.

• Check for Conflicts:

  • Temporarily turn off other running programs and applications that might be conflicting with the launcher.

• Update Windows and Drivers:

  • • Make sure your Windows updates are fully installed and that your SSD drivers are up to date. This is especially important for Samsung SSDs.

Also Read : 0800 300 9851 | Spam or Scam Calls

2. More Advanced Solutions

• Delete Corrupted Files:

  1. Navigate to your StarCitizen\LIVE folder (by default, C:\Program Files\Roberts Space Industries\StarCitizen\LIVE).
  2. Locate and delete the data.p4k file.
  3. Restart the RSI Launcher and go to Settings > Verify to redownload the file.

• Full Reinstall:

  1. Back up your controls and customcharacters folders located at \Roberts Space Industries\StarCitizen\LIVE\user\client\0.
  2. Uninstall the RSI Launcher.
  3. Delete the Roberts Space Industries folder.
  4. Go to %appdata% and delete the rsilauncher folder.
  5. Go to AppData\Local and delete the rsilauncher-updater and star citizen folders.
  6. Restart your PC and reinstall the launcher and game.

• Run a Command Prompt Command:

  1. Locate the CMD (Command Prompt) app.
  2. Right-click and select “Run as administrator.”
  3. Copy and paste the following command and press Enter: REG ADD "HKLM\SYSTEM\CurrentControlSet\Services\stornvme\Parameters\Device" /v "ForcedPhysicalSectorSizeInBytes" /t REG_MULTI_SZ /d "* 4095" /f
  4. Restart your computer.

• Check Drive Format:

  • Ensure the drive where you are installing the game is formatted as NTFS. You can check this by right-clicking the drive in File Explorer, selecting “Properties,” and looking at the “File system.” If it’s not NTFS, you may need to format the drive, which will delete all data.

If none of these steps work, it is recommended to submit a bug report to the RSI Issue Council to help the developers identify the root cause of the problem.