I had a tablet a few years back, and one day it just wouldn't turn on. I had a lot of games on there, and I assume one was a virus which destroyed my tablet.
Kind of glad that happened, though.
My first computer was a different story, because I loved it, even for it's slowness.
Again, I installed a lot of things, this time music, and I assume one was a virus of sorts, which destroyed my computer. Thankfully, it was saved, and it was set back to how it is when it's brand new. Unfortunately it was extremely slow, so I didn't use it. Ever since then I've been very careful with my installations..