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Win 7 64 bit pro stopped working, doesn't start - asks boot from cd
Hi,
I was using Windows (win7 pro 64bit), just browsing the internet and then I went away from computer for an hour or two. When I came back computer had restarted itself and there was this black bios startup screen and it asked me to boot from cd. "Boot from cd: DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER"
Ok. I didn't know what was going on so I did that. After I inserted the cd, computer started to install Windows 7. I didn't want to do that so I didn't install it. I realized something is wrong.
I closed the computer. I decided to unplug all the usb-devices and restarted. Same thing again - boot from cd: disk boot failure... I pressed DEL to get to the BIOS settings. I changed bios settings to fail-safe. I restarted, pressed F8, chose at first Optimal Windows settings (sorry, can't remember the accurate names of these functions) but it didn't work. It just got stuck and nothing happened. Then I restarted and tried Safe Mode. It got stuck and I got blue screen which went away so fast that I didn't have enough time to see what it said. Then I changed the BIOS settings back to optimal, pressed F8 and selected Repair Your computer. The "Repair your computer" function didn't accept my password and then it just restarted the computer and again there was black screen and text: DISK BOOT FAILURE, INSERT SYSTEM DISK...
I tried once again use the F8 and choose Safe mode but F8-key didn't work anymore. When I pressed it, it did make a sound but I couldn't get to the point where I can chose Safe mode, Repair your computer, etc. All I got was the text DISK BOOT FAILURE, INSERT SYSTEM DISK... I restarted four times, pressed F8 by pressing repeatedly and then just pressing it. No luck. And no - I don't have F-lock on, I don't have that kind of function on my keyboard.
So F8 doesn't work anymore, Safe mode gives me blue screen of death and everything else just gets stuck...
Please help me.
1) What's wrong with my computer?
2) What can I do now?
3) Have I lost all my work files inside the computer?
4) How can I figure out what happened to prevent this happening again?
- Tuomas