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# How to clear NinjaTrader 8 cache


| Clearing the cache in NinjaTrader 8 helps resolve performance issues and improve application stability by removing accumulated temporary files.


#### Step 1: Make sure NinjaTrader is not running

Before you can clear the cache, it is important to close the NinjaTrader application:

* Make sure that any open workspaces or charts are saved by clicking **File > Save** or **Save As**.
* Exit the platform by clicking on **File > Exit** or the “**X**” button in the top right corner.

#### Step 2: Locate the NinjaTrader cache folder

The next step is to find the cache folder on your device. The default location of the cache folder is in the **Documents** folder under **NinjaTrader 8 > db**:

* Open the Windows File Explorer by pressing the **Windows Key + E**.
* Navigate to the **Documents/NinjaTrader 8/db** folder to access the cache.

#### Step 3: Delete cache files

Once you’ve located the cache folder, follow these steps to delete the cache files:

* Highlight and delete the ‘**cache**,’ ‘**day**,’ ‘**minute**,’ and ‘**tick**’ folders.
* **Important**: ***Do not delete or move any other folders in this location***.

![](https://storage.crisp.chat/users/helpdesk/website/-/d/a/0/d/da0d2c9572aef000/image_1n8uzc2.png)
#### Step 4: Empty the Recycle Bin

* To permanently remove the cache files and free up disk space, purge your computer’s **Recycle Bin** of those files.

#### Step 5: Restart NinjaTrader

With the cache files deleted, you can now restart NinjaTrader:

* **Double-click the NinjaTrader** icon on your desktop or in your Start menu.
* Wait for the platform to launch.
* Check the performance of the platform to ensure that the cache cleaning process was successful.


||| Once restarted, the program will recreate the necessary cache files and you’ll be off to the races in no time.


When you restart NinjaTrader and connect to your data provider, you may notice a longer initial “Loading” time on your charts as historical data is re-downloaded, but your overall performance should be better.

### Important Considerations

##### Regular Maintenance

A good practice is to periodically clear the cache (at least twice a month – especially if you use a lot of tick chart data), which can resolve issues caused by outdated or corrupted data, ensuring smoother platform operation.

##### Backup Your Data

Before deleting any files, back up critical data to avoid accidental loss. Use NT8’s built-in backup feature for ease.


| By following these simple steps, you can maintain optimal performance for NinjaTrader 8 and minimize issues related to outdated cache data.