Viruses. My computer was updated of its computer security. Lately, it slowed up its operation and my computer hanged most of the time. I was right that my anti-virus was already outdated. My computer technician put an updated security on it. When scanned for viruses, three trojan horse viruses were found. See how these viruses could kill my blogging life? Bloggers, out there check your computer always for updated anti-virus.