You can skip this part if you just want to get to the point. goto :question
I have a toshiba satellite c885, that originally had windows 8 installed. I deleted windows 8, and installed ubuntu. On my computer, since it came from the manufacturer with windows 8, I have to enter bios (with F2 at startup) and change eufi boot mode to csm in order to boot anything but windows. Now I want to install windows again. To do so, I loaded a windows 8 iso onto a flash drive, and went to boot it. Unfortunately, I enabled a mode called "fast boot" under the boot speed section in bios. I also was in CSM mode. In order to boot my flash drive, I have to be in EUFI boot mode. But with this fast boot mode, I can't access bios for some reason.
If I press F2, then power on my computer, the motherboard starts beeping. I know a motherboard beep is some sort of error message, but past there, I don't know. It was a solid beep, not a series of beeps, just one long beep that continues until I press the power key. This would happen whenever I would try to enter the bios while in CSM mode. How I would overcome this: I would power on my computer, immediately press CTRL + ALT + DEL, the screen would go black, and the system would basicly reboot, which then for some reason I could press F2 and get to bios just fine, to change back to EUFI.
But now with this fast boot, that isn't working. I can press CTRL + ALT + DEL, the screen would go black, then power back on, but now none of the bios keys are doing anything. Nothing.
What I have done: I have reseated the CMOS battery (taken it out, and put it right back in). This had no effect whatsoever.
I have taken out my hard drive, and then powered on my computer. It goes to some screen saying no bootable devices, press any key to retry. It doesn't recognize my usb (it is set to boot second, I think) since it is in csm mode.
I just need a way to reset all bios settings. I used to be able to do this from within bios with F9.
With the CMOS thing, do I need to let the battery sit out for a period of time? I took out the main computer battery because I didn't want to chance something frying or getting shocked. Do I have do drain the CMOS battery? Should I short the circuit?
Whatever advice you give me, please be thourogh, as today was the first time I ever opened a computer :D