Security scanning - Multi-OS / Dual-boot?

Curious to know if AV/Malware scanning for both primary partitions can be fully performed when the scanning software is installed onto just one or is it 100% thorough only for the active partition? Would like to keep one bootable active partition as lean as possible...if possible.



from Windows 7 Help Forums http://ift.tt/1NQu7Fo

via IFTTT