HOTSPOT
You have computers that run Windows 8 Pro and are configured as a workgroup. Each computer is
scheduled to run a Windows Defender full scan every morning at 07:00. Users report that they are
unable to view previous instances of detected malware when they arrive to work. You need to
ensure that all users can see previous instances of detected malware in Windows Defender. Which
option on the Settings tab should you select? (To answer, select the appropriate option in the answer area.)
Answer: 
Answer should be Advanced
http://www.7tutorials.com/introducing-windows-8-how-use-built-windows-defender-antivirus
As an admin you can use the “History” tab to see any virus/malware that were detected.
I agree, the “advanced” menu has an option “Allow all users to view the full History results” – Any user on your computer can open defender, but only Admins can view the History tab by default. Check this option to change that.
The Microsoft Active Protection Service – known as MAPS – is a service on your system that can send information to Microsoft about any malware detected on your system.