You're worrying too much. Just go download AVG or such and quit being so
paranoid.
As a Windows user you are going to have to adjust your anxiety levels.
Just as if you had moved into a bad neighborhood, it would be impractical
to lock yourself in and never venture out. Risk is the price of
First of all I bought Vista for my MacBook because there is a specific
bookkeeping program for my business that is only made for Windows that I'd
like to use, because Netflix has a new on-line movie viewing option only
available for Windows and because I anticipate similar situations occurring