Acer aspire AM1201 Stuck at start up

So I liek to use my bros computer to search stuff, and post on southperry/ browse threads, since it is much faster then my computer (that gets VPU errors and viruses. ), and when I turn it on, it stays at that part where it shows that underline on the blacnk screen. I think I'll just try to get lucky trying to turn it on, but how do I turn it off? I see no reset button, and don't know if holding down the button will turn it off, or damage the com.

Anyone know what I can do?