Hello, I don't even know what to do or where to begin. My computer has stopped responding. About a month ago our computer took over an hour to start up, we just kept seeing the four-coloured Windows logo in the middle of the black screen. Then it finally started and we were able to use it just fine. So I stopped turning it off each night, worried it wouldn't turn on again. Then for the last month it will sometimes work perfectly for some time, and then other times it will take a half hour to open an email or a webpage or an Excel spreadsheet. Now since last night it will sit on that Windows logo screen for hours and then the screen goes black and remains that way. I can't even start it up to run Spybot or any other virus scan. My Windows updates were up to date. I don't know what to do or what to try. Can someone please help me? I would be so gratful. Thank you! :o)