I have an Acer Aspire 5741z-5433, it has Windows 7 Home Premium, it just stoped working one day and now when I turn it on it loads a page where I can press F2, and if I don't press it the screen goes black. If I do press F2 it brings me to a screen that I have to type in a password, I don't know the password. I don't know much about computers, what do I do?
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