Removal of antivirus

I am wanting to download Norton but I have to remove Trend Micro Antivirus and it won't let me. said I have to do update but when I click on it won't open. How do I uninstall this program?
 
Here are some simple steps you can follow if you can't uninstall the program from control panel :
  1. Open File Explorer.
  2. Double-click the C:// drive.
  3. Double-click the Program Files (x86) folder.
  4. Double-click the Trend Micro folder.
  5. Double-click the OfficeScan Client folder.
  6. Locate NTRmv.exe and then double-click it.
  7. Restart the computer to complete the uninstall process
 
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