Virus?

Scanning my boss's laptop right now as I am kind of having the same problem with my laptop that died on me since last Monday. Not very sure if is actually caused by the external hard disc that I been using all these while to store the office works but just to be safe, I am scanning it with the virus scanner at Iolo.com and another internal scanner that been installed in the laptop. Hopefully nothing is wrong or else, I will be in big trouble!!