Is this the Regedit you used ?
Click on the Start menu and select Run (Or press Windows key + R). You will get the Run dialog box. Type Regedit and hit Enter. The Windows Registry Editor will open. Navigate to the key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Microsoft Security Essentials
and delete it. After deleting the key, reinstall Microsoft Security Essentials and try to remove it using Add/Remove Programs again. If it is a success, you are good to go.
IMPORTANT: The above involves making changes to the Windows Registry. Make sure you create a system restore point before working with the registry. You can also backup the entire registry using ERUNT
Condobloke ...Outback Australian fed up with Windows antics...??....LINUX IS THE ANSWER....I USE LINUX MINT 18.3 EXCLUSIVELY.
“A man travels the world in search of what he needs and returns home to find it."
It has been said that time heals all wounds. I don't agree. The wounds remain. Time - the mind, protecting its sanity - covers them with some scar tissue and the pain lessens, but it is never gone. Rose Kennedy