How can I install an Expert Advisor on MetaTrader 4?

Go to file on MT4.

Open Data folder then choose - MQL4.

Open Experts file.

Then paste the .ex4 file.

When you restart the platform, the Expert Advisor should now appear in the "Navigator" window under the "Expert Advisors" section.

To place the Expert Advisor on the chart, drag it from the Navigator window and place it on the desired chart. A window will appear allowing you to configure the Expert Advisor settings. Once the settings are configured, click OK.