I am going to have a dualboot installation of Ubuntu and Windows 7.
The thing is I'm not sure if windows or its applications can have access to my Ubuntu partitions and its data (in normal way, without install such things like ext2fsd).
Let's say my windows gets infected, is it harmful for my data at ubuntu partitions? Can infected windows make any changes or have any effects on my installation of Ubuntu or its data?
If they can, so i should install windows in Virtualbox.
EDIT:
This question has nothing to do with opening ubuntu partitions and accessing its files from windows, It's a security concern.
I want to make sure that windows doesn't have any access to my ubuntu data.