You can remove Omiga Plus from Windows if you no longer use it:

Follow these steps:
1.Open Programs and Features by clicking the Start button
2.Clicking Control Panel
3.Clicking add remove programs
4.Select Omiga Plus
5.Select Uninstall

You can remove Qone8 from Chrome if you no longer use it:

Follow these steps:
1.Open your chrome and click on the “settings”
2.Under options you will see the second paragraph "On Startup"
  Please click on set pages to whatever you want.
3.Under options you will see the third paragraph "Appearance"
  Please click on set pages to whatever you want.