Linux... you kidding? linux is vulnerable too.
Linux is only as vulnerable as it's operator.
Microsoft only fixes problems when Microsoft is forced to admit them. There are dozens of attack vectors you can't seal because you don't know about them and never will.
Of course both are vulnerable. The matter is that on Linux you can do something about it. On Windows you only get placebo/false sense of security.
But fools will be fools. Stolen DRK will undoubtedly end up in an exchange for me to buy at some point... So go ahead and use Windows with all the aftermarket Unicorns and Fairy Dust you like... More DRK for me.
If you even ask the question "Can I run a MN on Winblows?" You're definitely very, very, very unqualified to run a MN. But go ahead and let your greed push you to do stupid things. Lack of discipline... Your loss is my gain.
If you want to make money running a masternode, don't take shortcuts. Pull your head out of your ass and LEARN. There is no shortcut.