To dream that a computer has a virus or has crashed suggests that something in your life that is out of control. It may parallel something in your life that has come to a crashing end. If you dream that your computer has a sentient computer virus that would create random or strange artwork, then it depicts your subconscious desires. The artwork may also be a reflection of a situation in your life that you are ignoring. In particular, if the artwork is of a little boy smearing X’s with his poop on a calendar, then it indicates past regrets or remorse.
To dream that you have a viral infection or contracted a virus suggests that you are experiencing an unpleasant change or an emotional breakdown in your waking life. The virus may be symbolic of your inability to cope with a situation and you see that being sick is a way out. On a more direct note, the dream may signal you to pay close attention to your health, especially to the area of body revealed in the dream.