I was just given the Acer Aspire one d250- 1151

I was just given the Acer Aspire one d250- 1151 netbook. I was trying to fill out the questions they ask when you first turn it on, and because I had to charge it three times, I shut it down without completing. Now when I turn it on, I get this little box with this message: The system is not fully installed. Please run setup again. When I click on OK, it starts the system all over again and the same pop up box comes back. I think I need to reset it to the original program where I can start answering the questions all over again, but the manuals that came with this are not helpful to me at all. HELP PLEASE!!!!!