Removing the Name ActiveX Control Warning in SharePoint 2010

Hi , 

When you open your Share Point application in Internet explorer the popup message appears on browser.

here is a screenshot :

To turn off this message from central admin.

here is a screenshot  :

Open Central Administration and click Manage Web Application. From there select your web application from the list and then from the ribbon click General Setting >General Settings :

After that simply change the "Enable Person Name smart tag and Online Status for members" to No, and click OK:

That's all.