How to Purge All Historical Data?

[ChainsawDR]

I've experienced an issue whereby tick data and 1min data show materially different results (1 & 2 images attached). Reloading Historical Data from the chart looks to resolve this issue (image 3 attached). I'm not sure why this happened - at some point I may have changed my timezone in windows from western to eastern, I'm not sure. I now need to purge all historical data so I can redownload it. I have data for thousands of tickers so one by one in the chart is not possible. Please could you advise how I can delete at scale?

Many thanks

ChainsawDR

[NinjaTrader_ChrisSch]

Hello ChainsawDR,

Thank you for your note.

I would recommend deleting your current cache and historical data files from the NinjaTrader folder. First, you'll want to make sure that you have completely closed and exited the NinjaTrader program. To delete the cache, you'll navigate to Documents folder, NinjaTrader folder, db folder and then delete the "cache", "day", "minute" and "tick" folders respectively. When you have accomplished this, you'll then relaunch NinjaTrader as you normally would.

Please let us know if we may assist further.