I cannot get my computer to start at all.

have you tried to see if it will start up in safe mode? if not try it and if it does start up then try and sort it out from there.

Hold down the zero "0" number key and then press the power button on startup.

Keep it held until you get reset menu

What OS you have ?

Go to Start and click on it. A list will come up - Click on computer.
Now look for "DVD Drive" and click on it. This drive should now be activated to view the DVD.

sounds like you have a bad hard drive,,try putting a bootable cd and start it like that,or at the start up hit the f2 key and go into the setup and seee if there is a hard drive loaded

When your toshiba splash screen is showing on startup, press F8 continuously, then you should get some options, go to the one that says safe mode. After loading windows in safe mode click start, search, and type system restore. Open system restore, find a date where your pc was working correctly and click restore. If this doesn't do it on the toshiba spash screen (if you have a new enough laptop) there will be an option called system recovery usually f11 key, this will restore your pc back to its factory state and should resolve any problems your having. If you don't have that option go to https://www.csd.toshiba.com/cgi-bin/tais/support/jsp/serviceUnitVerification.jsp and see if you can order a set of recovery disc's for your model, they usually run from $25-$30. Hope this helps.

Try hitting any of the following keys:

• F8 (should bring up the windows boot screen, and on there you should see "Repair your Computer" or something similar).
• esc
• del
• f7
• r
• c
• ~
• home

I believe F8 is the one you need to hit, but the others are keys I've seen to be various boot options in the bios. Note: F8 needs to be hit after the BIOS screen but before the loading windows screen.

Can you go in via safemode if so one of your drivers might be of issue.if you get in try this start run type cmd hit enter once,the dos prompt appears at the prompt type chkdsk /r.you will see a error message stating this volume is in use do you want to run scandisk on startup instead answer yes restart it will start repairing itself on reboot.Good luck

Many things cause a computer to not start up once in a while. Viruses, new software issues,
new hardware issues, but heat will cause it to shutdown, get lazy or slow, lock up, multiple images on the screen. One thing you can do is ck your BIOS settings, Press DEL. or ESC as it boots. Check your settings. Save the set up defaults, that should be safe.If you think its a heat thing, B-buy sells a laptop cooling pad, you put under your labtop to cool it. Always ck for viruses, and unwanted spywear.

ur screen is out try hooking ur labtop up to a desktop monitor