A similar post talked about this, but was closed. In that post the user indicated that they cleaned the machine in question and the next day it would have this 'infection' again. These items can be set by Group Policy in a domain policy. So, that setting may get changed back to '0', but the domain admins intentionally have it set to '1'. I know I have a policy in place that sets the home page for all the users in the company. So, like the gentleman said, if you know what you are seeing, this can definitely be ignored if you know that it was set to '1' for a reason. I doubt most home users would have this set.