Support for MSE officially ended on January 14, 2020 .
Any website offering a "Full Version Crack" or "Serial Key" for this software is likely distributing bundled with the installer. Key Facts About Microsoft Security Essentials Cost: It has always been free for genuine Windows users. Support for MSE officially ended on January 14, 2020
Top 8 Microsoft Security Essentials Alternatives for Windows Support for MSE officially ended on January 14, 2020