Hi,

I posted this topic in the beginners section but didn't receive much advice other than being advised to run a virtual machine. Could you guys help me understand this:

I would like to run a bitcoin node and I'm also considering using bitcoin core 0.15. I feel like they have good development but my understanding is that if every node is running the same software, then it leaves the network vulnerable to attacks if there is a vulnerability in that particular software. So, my questions here are:
1. Should I only run a node if I have an educated opinion about protocol development? i.e. if there is a proposed change and I don't know precisely if the proposal is a good thing for the network, would I be inhibiting the network?
2. Should I consider running node software that ISN'T core, so as to "decentralise" the network in that regard?
3. What are those alternatives called?


My computer is only a relatively new build and I can see no evidence of any viruses,malware etc., however I do use it for general internet browsing and it's basically impossible to know if my computer is infected. If I was to run a bitcoin core node and utilise the core wallet:
 - What procedure do you recommend to scan my computer for viruses/malware? Is a reinstall of windows sufficient? Is it more secure to run linux as a second operating system for this purpose?
 - (although I don't see this scenario occurring for a little while) Is it possible to use the funds in that wallet away from home? (i.e. using a phone app or something?)
 - As I have been advised to use a virtual machine: If my local computer is affected by some type of virus, wouldn't the virtual machine also be vulnerable?

I look forward to hearing from you.
Thanks and kind regards,
Pat