Hey. I work in an office with a Comcast router that my two computers are wired to. I wanted to buy a laptop on Craigslist (with Windows 8.1) for only thirty dollars. A well-meaning friend sort of read me the riot act about how the laptop could have a virus and at the very least I would need Avast free a/v and Malwarebytes https://www.malwarebytes.org/antimalware/premium/ paid version for $24.95/year. (My funds are severely limited.) He said the malwarebytes premium is the only way to safeguard against Cryptolocker and other ransomware. (I'm careful online and from my research it seemed the big risk for getting ransomware was clicking on attachments, which I would never do.)
The thing I worry about is if I get a virus that it could spread to the other computers (the business ones) on the network. (Only two of the business computers are wired into the Comcast router and a third is connected via wifi.) That would be devastating. I of course wouldn't be pleased if my newly purchased laptop got infected, but I could live with that. (And you guys would help me clean it up anyway. )
So I'm wondering:
#1)If I should get a virus, could it spread to the other computers on the network?
#2) Would I need the Malwarebytes premium?
#3) Is there an effective free anti-ransomware software out there?
#4) What would be a prudent way to safeguard myself if I do buy the laptop?
Thanks very much.
Edited by GreggWriter, 31 January 2016 - 05:38 PM.