You couldn't tell what the response was, so you spent your time monitoring the software you did have access to, until you suddenly could see again. But you were seeing several hundred simultaneous security camera views, as well as the three dozen security drones wandering the facility. You also realize that the security system is connected to everything else in the facility, so you control everything, all the way from the e-mail server up to every unit produced by the facility from the test subjects. You even located your old body. You also located your head. There's a featureless black sphere on a pillar in the central AI room that lights up when you make a command.
The first thing you do is take the experimental nanite conversion system that was under development and release the nanites in the scientists' quarters, allowing you to take control of them completely. You even discover that you are the controlling influence, the "queen" if you will, and that none of the people or units you control are at all capable of resisting your orders.
You find a new type of unit that hasn't been activated yet, an infiltrator unit which is indistinguishable from a human. There's no personality or mind installed, so you decided to try seeing if you can take direct control of it.