Kaspersky Anti-Virus FREE Edition

I got smacked with the ransom ware stuff yesterday and shut the computer down. I loaded Malwaresbyte and Kaspersky and it still lived there on the Firefox browser. I am now back and running after doing a full reinstall but at least I didn't have to pay anyone any ransom! This virus is getting worse as I simply mis-typed an address and got screwed. I am never going to enter an address directly as it's too easy to make the same mistake that I did. Now, I will ever the address in the search bar and let it pull us the list of addresses associated with that entry. Had I done that yesterday, I would not have wasted about 1/2 day putting everything back together again.