What Is the Difference Between Windows Defender and Microsoft Security Essentials?
Contents Windows Defender Helps Protect Your Computer from Spyware and Some Other Potentially Unwanted Software, but It Will Not Protect Against Viruses. in...
Windows Defender helps protect your computer from spyware and some other potentially unwanted software, but it will not protect against viruses. In other words, Windows Defender only protects against a subset of known malicious software but Microsoft Security Essentials protects against ALL known malicious software.
Does Microsoft Security Essentials turn off Windows Defender?
When you download Microsoft Security Essentials, it will turn off (but not uninstall) Windows Defender automatically.
Do I need Microsoft Essentials?
You can’t use Microsoft Security Essentials, but you don’t need to—Windows Defender is already included and ready to go. But if you’re looking to protect a PC with an older version of Windows, you can use Microsoft Security Essentials to help guard against viruses, spyware, and other malicious software.