Just did a small malware test in the virtual kiosk, where I ran 5 malwares and let them install and infact. Then I exited the kiosk using the -> arrow and checked my windows and nothing made through and was clean as usual. So the malwares were stuck inside the kiosk. So I cleaned kiosk by resetting the sand box and thats was the end of the infections. Man I love the virtual kiosk. It's like a virtual windows or virtual machine. It seems you do not need any protection with kiosk on.