Just want to get on the soap box if I may. Years ago when the internet was new, kids wrote most of the viruses, it put a feather in the cap if they infected you and the virus made your screen wobble or some other stupid thing, Well, those days are over. Malware and Viruses are written by thieves and there only goal is to exploit you, steal anything they can from you , in the process of doing that, if it borks your computer they could care less. Its become big business to infect you, most of, but not all of the garbage comes from the RBN ( Russian Bussiness Network ) Google it and read about them for yourself. The threats going around today can immobilize your computer, they can steal all your passwords, including the ones for online banking, they can steal your credit card numbers and purchase things with your card. Some threats are so bad that the only recourse is to reformat your hard drive and do a clean install of windows, not a lot of fun. Having a Antivirus program , a Firewall and a few Anti Spyware programs install are must haves along with keeping your Operating System up to date with the latest patches and updates, but this garbage can still sneak in, the weakest link in the chain is you, if you practice unsafe surfing habits, you can get whacked. File Sharing programs themselves are safe, but the files you want to download may not be. Opening up Spam email , especially there attachments can get you in trouble.......jus my 2 cents