How to Fully Reinstall NinjaTrader 8 Without Losing Your Settings

If you’re experiencing persistent issues with NinjaTrader 8, a full reinstall can help resolve software corruption, glitches, or update-related problems. This guide walks you through safely reinstalling NinjaTrader 8 without losing your strategies, templates, or workspaces.

Step 1: Close All Applications

• Make sure NinjaTrader and any related trading applications are fully closed.

Step 2: Backup Your Configuration

• Go to your Documents folder.
• Locate the folder named NinjaTrader 8.

• Right-click and rename it to:

  NinjaTrader 8 OLD

• Important: Do not delete this folder; it contains your workspaces, strategies, and templates.

Step 3: Uninstall NinjaTrader

• Open Control Panel > Programs and Features.
• Locate NinjaTrader 8, click it, and select Uninstall.

Step 4: Remove Program Files

• Navigate to:

  C:\Program Files (x86)

• If a folder named NinjaTrader 8 exists, delete it.

Step 5: Reboot Your VPS

• Restart your VPS to ensure all files are cleared from memory.

Step 6: Reinstall NinjaTrader

• Download the latest version from:

  https://ninjatrader.com/GetStarted

• Right-click the installer and choose Run as Administrator.
• Select Complete installation when prompted.

Step 7: Restore Your Settings

• Return to your Documents folder.

• You’ll now see two folders:

  • NinjaTrader 8 (newly created by the installer)
  • NinjaTrader 8 OLD (your original settings)

• Rename the new folder to:

  NinjaTrader 8 Fresh

• Rename NinjaTrader 8 OLD back to:

  NinjaTrader 8

Why keep the "NinjaTrader 8 Fresh" folder? This newly installed, untouched folder is a clean baseline, a known-good copy of NinjaTrader's default files and structure with none of your old configuration in it.

Keeping it around gives you two things: something to compare against if you suspect a specific file in your restored settings is corrupted, and a working fallback you can switch to (by renaming it back to NinjaTrader 8) if restoring your old settings brings the original problem back. Once you've confirmed your restored platform is stable for a while, you can safely delete the Fresh folder if you no longer need it.

Your full NinjaTrader environment, including all strategies, templates, and workspaces, is now restored.

Need Assistance?

Our support team is available 24/7. If you have any questions or run into issues, open a support ticket from your QuantVPS dashboard and we'll get back to you as quickly as possible.