There are two ways to change your MT4 password.
1. Change on MT4
In MT4, open Tools –> Options and click on the "server" tab. Click Change Password and set a new password.
2. Change on the Client Cabinet
- Login to Client Cabinet in Dashboard screen click "Trading Account Login Detail" on the right side of an account for which you want to change the password.
- click "Reset MT4 / MT5 password", enter a new password and click "Reset MT4 / MT5 password"
- "Password has been successfully reset" message will be displayed. A client will receive an email titled "MT4 / MT5 password reset successful".