the other advantage of a Linux OS is no need for activation. When your internet is down or a part of your computer breaks so you swap out a network card for a modem and MSWindows decides it needs to be activated again its a big pain.
My equipped hat applies a lot of disaster recovery to my home computers, I can say that I have a better DR plan than most small businesses out there. Think about your important files you keep and make backups of, I keep a live distro with those so I can boot and read my files outside of the (possible) malware infected pc borrowed from someone else.