FAQ's on Meltdown and Spectre

Below are the list of FAQ's on Meltdown and Spectre bugs.

1. What are Meltdown and Spectre?
2. What is the kernel and arbitrary address?
3. Who needs to worry about meltdown and spectre?
4. How meltdown and spectre exploit your personal data?
5. How to fix meltdown and spectre?
6. How to check Antivirus compatibility to avoid Blue Screen of Death error?