So, I hadn't formatted/reinstalled my computer for a year, which is odd cause I normally do it at least every 4-6 months.
Everything goes smoothly, I backed up all my files and performed the install and updates. 2-3 hours later, I have a fully up to date computer which runs super fast!
So I install a few system monitoring gadgets that my co-worker uses on his computer. He's a computer tech head and tricked out his water cooled tower with all sorts of programming shenanigans, so I install them and everything's good. I check out the config options and find out the gadget has an update due. I tell it up update.
My computer goes fucking apeshit.
I now have adware, spamware and all my internet links flash rainbow colors when I mouse over them. I told him about this crap and he laughed and told me to install the gadget, not to update it.
So, I'm now just finishing up my second format/reinstall... this time not installing said gadgets.
Jokes on me, I guess.