I was working or on facebook should I say on my laptop everything was fine my windows gave me a notification to update it so I did naturally when finished it wanted to reboot so I allowed it to reboot but then I just closed the lid and went to bed. Next morning I tried to boot my laptop up and now it's blinking from a black screen with a white cursor in the top left screen then 3 seconds it blinks to the "Lenovo" boot up screen with BIOS and Intel on it for 2 seconds then back to the black screen with cursor. I tried manually rebooting it but same thing. I tried taking the battery out and replacing it but still same thing. I tried all the F keys none of them work. I was told to hold down the f keys I tried one by one and all I get it beeping still nothing happens. I tried to copy my husbands laptop windows on a disk thinking I can reinstall or repair windows but that was a no go. So my laptop just sits there and blinks back and forth with the same two screens. It's a Lenovo G570 windows 7 64 bit. I don't understand how can windows random update cause my computer to do this and I can't find anything in the search engines to help me at all. Should I just chunk my laptop and buy a new one? Is it worth even taking it in a shop?? Apparently safe mode doesn't work because none of the F keys work. The windows repair/copy I have doesn't do anything. What else am I missing?? I do not want to take my laptop physically apart. If it will cost me more than 50 bucks to fix it's not worth it. I've had this laptop since 2010-11ish it's been through everything with me and I have TONS of stuff on it but it was dependable. Physically the hinges were breaking though and the cover on the keyboard was starting to pop off...it's a shame that the software was lasting longer than the hardware. Like I said it was working just fine until I agreed to a windows update then forced a reboot and now it's like Microsoft killed my laptop. Probably to force me to spend more money in buying a new one...conspiracy I tell ya..lol.