When Walter clicks on his Google Chrome shortcut on Windows, it keeps taking him to MSN.com. Leo recommends right-clicking on that shortcut and clicking on "Properties." This will show him what that shortcut is actually doing. Leo suspects that at some point, perhaps while installing something, he clicked something that made MSN his home page. But he should look in that shortcut for something about MSN, and he can remove that.
Unfortunately, there are other ways Microsoft may have made that the home page. He should also look in Chrome's settings for the "start page" and change that. It's not unusual when installing software for it to automatically change things like that.