said by chachazz: said by Mele20:
Windows Defender on Win 8 is NOT MSE on Win 7 and earlier.
In Windows 8 and Windows RT, Windows Defender provides the same level of protection against malware as Microsoft Security Essentials.
Indeed. They are the same engine and virus definitions. If you go to Help and About for any of the MS products you'll find that they use the same engine version and usually even have the same or very close client version numbers.
»blogs.technet.com/b/clientsecuri ··· 012.aspx
All Microsoft Antimalware protection clients listed below will be using the same underlying technologies and offer the same level of protection:
FEP with Update Rollup 1 + future update
Windows Defender included with Windows 8