Using Security Essentials in Windows 10, vs. Windows Defender?

Question

So I upgraded from Windows 7 to 10, last month. I was running Security Essentials in 7, and to my surprise it is still running in 10. I was under the impression that MSE was incompatible with 10 and that it would be removed automatically and replaced by WD. Well, it's still running, it seems to be still updating its definitions, and doing its automatic scheduled scans just as it has always done before.

I didn't think too much about this before, but I notice that after every reboot, I always get the message "Windows Defender has been turned off and isn't monitoring your system. If you're using another app to check for malicious or unwanted software, use Action Center to check that app's status." So checking Action Center shows that MSE is running properly, but if so, why should I get the warning about Defender?

Answer 1

Microsoft Security Essentials, is NOT compatible with Windows 10. You should uninstall Microsoft Security Essentials and restart your PC and it will turn on Windows Defender.

Technically, Windows Defender and Microsoft Security Essentials are using similar detection engine, while for Windows 10, Windows Defender enhanced due to new security features in Windows and it has better protection.

Answer 2

When I try to uninstall it, it tells me that "[I] don't need to install it"! Meaning that it won't let me uninstall it because it won't allow me to install it. Yet somehow it's already been installed and already running there.

Note: the error message I get is "Error Code: 0x8004ff6f".

I found this problem seems to be similar to mine:

http://answers.microsoft.com/en-us/protect/forum/mse-protect\_start/what-is-the-meaning-of-error-code-0x8004ff6f-when/ceda8c13-6b8e-4380-ad15-625660e6b7d9

Answer 3

So I upgraded from Windows 7 to 10, last month. I was running Security Essentials in 7, and to my surprise it is still running in 10. I was under the impression that MSE was incompatible with 10 and that it would be removed automatically and replaced by WD. Well, it's still running, it seems to be still updating its definitions, and doing its automatic scheduled scans just as it has always done before.

I didn't think too much about this before, but I notice that after every reboot, I always get the message "Windows Defender has been turned off and isn't monitoring your system. If you're using another app to check for malicious or unwanted software, use Action Center to check that app's status." So checking Action Center shows that MSE is running properly, but if so, why should I get the warning about Defender?

@ BlackJacques

See the Answer of GreginMich in http://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_updating/windows-defender-real-time-protection-is-off/f93699de-4d9c-490a-96c8-b3c73d9a2166

Regards…

Answer 4

@ BlackJacques

See the Answer of GreginMich in http://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_updating/windows-defender-real-time-protection-is-off/f93699de-4d9c-490a-96c8-b3c73d9a2166

Regards…

I have tried the command, as the other thread said:

"C:\Program Files\Microsoft Security Client\setup.exe" /x /disableoslimit

And it made no difference, I still got the exact same message as before.