How To Update Backtest Historical Data To Have 90% Data Modelling Quality For Free

I just want to share to you how to update your MT4 Historical Data within MT4. No need to buy any plugin or downloading data file from other websites to achieve a 90% data modelling quality. You can achieve it within MT4.

Let's start...

Step 1) Run your MT4. From the menu, click Tools>History Center, or simply press F2 key. The History Center window will appear.

Click the image below to see larger image of the History Center window.

Step 2) At the left pane of the History Center window, choose the pair (e.g AUDUSD) that you want to update and double click. The timeframes under the pair will appear. Choose M1 timeframe. As seen in the image below.

Step 3) At the lower left corner of the window, click "Download" button. A warning message will appear as seen in the image below. Click "Ok" button.

Step 4)  MT4 will download your M1 data from Metaquotes as seen in the image below.

Step 5)  Once M1 data is downloaded, it's time to update the other timeframes with just a few clicks only. Choose M5. Click "Download" button. The same warning message mentioned above will appear again. Click "Ok" button. Another message will appear. See the image below. It says there's no more data to be downloaded and ask you instead to update and synchronize other timeframes. Click "Yes" to update all timeframes of the pair.

Step 6)  The warning message mentioned above will appear again stating that it will change data of other timeframes. Click "Ok". It will start synchronizing the data of all timeframes.

That's it. You can now use the pair for your backtesting.