Attacked by Adobe Flash Player Installer

This is my blog so I will just quietly mention that my computer had some serious problem booting just now, and when I had allowed Microsoft's utilities to complete the effort of recovery, the Adobe Flash Player - Installer dialog was sitting open, smack in the middle of the screen. I have no doubt at all that that is why my computer had trouble booting and, I am sorry, but this seems no better than a virus attack by Adobe. How did they get access to something that could cause me the boot up hassles? What if I was frightened by the experience of my computer not starting?