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Re: toshiba A105 will not boot up even with cd and f12
Its not a booting issue if you hear the music, it loaded windows. you might have a display issue, shine a light on it to see if you can see any faint images, if you can the backlights out if not it might be the display adapter on the MOBO, in either situation calling toshiba would be required for a repair, or otherwise take it into a shop, but first try a power reset,
unplug it and remove the battery, then hold the power button down for one minute, replace the battery and power cord and try to boot again. if this fails call toshiba, its definately a hardware issue.
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On some models this prompt reads Press F12 for boot menu. On others, it may say Press C to boot from CD-ROM. On still others, there may be a row of colored icons representing the various boot devices (HDD, FDD, CD, LAN, PCMCIA, etc.) Press F12 while these icons are displayed, and then use the arrow keys to move the cursor from one to another. As new models are released, the wording of these prompts may change.
Immediately after pressing the power-on button, press the hotkey for the device from which you wish to boot:
HotkeyBoots from deviceCIDE CD-ROM1FISA FDD2UUSB FDD3Ninternal LAN adapter4
If the disk is a CD or DVD, you should carefully inspect its surface and if there is any dirt or fingerprint smudges, carefully clean it. A bit of hand soap with water and a soft non-lint tissue can be used to clean. Be sure to wash all traces of soap off and using a soft lint-free tissue make sure disk is dried before re-inserting into the CD/DVD drive. If inspection shows the disk to be scratched, you may try a disk resurfacing kit but this may not be sufficient to return the disk to a bootable condition. Presume your tech support instructions have covered using your notebook's setup/startup to verify the boot devices being looked at on startup and their order. You may want to set the device with the problem disk as the first and only boot device to eliminate any possibility that one of the other boot devices in the startup list is interfering with subsequent boot up of the problem disk.
Try getting to the bios screen, if you can get to the bios screen then I would imagine the hard drive has failed. If it is hanging up at the toshiba splash screen and not allowing BIOS access, then I would lean toward a motherboard failure. Are you attempting a boot from the windows disc?, is that why you are trying F12? I have seen my share of these Toshiba M35's just give the Toshiba splash screen when there has been a motherboard issue. Changing out the main board will fix this particular problem. I had not found another solution for it.
When you load the cd and reboot, when you see the toshiba screen, start tapping F12, see if this brings up the temporary boot menu, if it does choose the cd and watch closely for "press any key". If there is nothing showing, might I suggest you get an external cd drive that attaches by usb. You will then have to get back to the BIOS and set the usb as your first boot device and try to boot again from the usb cd drive. Good luck.
OK, you need to locate to system CDs that came with your laptop. One of them will be disc 1 or operating system or Windows CD. Insert into the CD ROM drive. Power up laptop and when "Press any key to boot CD.." is displayed, press any key on the keyboard. If this message doesn't display, then the CD will boot and just follow the on-screen messages to install your OS. If your laptop doesn't boot the CD, then you need to go into your BIOS and set the CD-ROM drive as the 1st boot device. Follow on-screen messages during boot-up to enter your BIOS or try pressing the DEL or F1 or F2 or F12 key while powering up your computer. If you do not have the system CDs, then you need to call Toshiba and order them.