One of the must have pieces of software that you should load on your PC is a Virus scanner. Virus software searches out and detects (and in most cases removes) viruses from files and emails. Norton Antivirus has been getting some bad feedback lately. Seems they can not get the install as well as the upgrade process right. Many readers have told me about issues they have had with it trashing the registry in some way, as well as not being able to remove it. If you want good solid Anti Virus software, Clam AV, which has been around for a while now, is trusted, tested and FREE (Donation Ware). Go grab the Windows PC version. There is also a Mac version which I really like, and it works just like the PC version.