My toshiba laptop will not turn on...

Try using a different adapter and see if the problem persists. If so, then change the power supply and try using a new adapter again.

turn off the laptop ,,pop out ur dvd /cd burner turn it on ,,after it boots push it back in,,should show up,,

burn a cd with memtest x86 and then start your laptop with that cd in order to execute the memory test. problably you have one memory malfuction like mine had.

Oh dear that's the worst thing that can happen during a bios update. the bios chip is probably now useless rendering the laptop useless. You will need a new motherboard I am afraid to say.

go to the bios system when it starts and correct it

Look for any software on the machine that uses the the burner. Start by updating it (many of these programs use what are called burning engines to process the request to write to a cd, and if theyre damaged, then the writing process will appear to occur, but wont do anything). If you use programs that download and manage music (such as Limewire, Bearshare, or Napster), uninstall them.
As a last ditch effort, you can try the istructions in this Microsoft article:
http://support.microsoft.com/kb/314060
Be warned, you will have to reinstall the software needed to burn your CDs if you do this. It has fixed 99% of CD burning issues out there. Good luck

I know the original post is over 2 years old but I had the same problem. Here's what happened:

8 months after buying my Toshiba A135 the battery began charging only intermittently. It also would not run without the battery. I put up with it for a month then took it back to Best Buy to get it repaired under warranty. They kept it over 2 weeks then gave it back saying it was the battery, which they replaced. One week later I had the same problem again. Back to Best Buy. The guy at the counter said it was probably the battery, they had encountered a lot of that. I said no, explained it, and gave it over to be fixed. 2 weeks later I got it back. They had reset the BIOS, no hardware replacement. I got it home and it was not fixed. I took it back the next day. They kept it 2 more weeks. They replaced the motherboard. I took it home and...you guessed it the same problem on the day I got it home!!! I took it back with one week left on my warranty. I don't remember what they replaced the last time but I think it was the motherboard again. I got it home (2 weeks later) and THE SAME PROBLEM on the day I got it home. So, the lesson there is that Best Buy computer maintenance SUCKS!!

I called Toshiba to try to get them to fix it for free, and out of warranty. After several frustrating minutes of conversation with an accented person who just kept telling me that my warranty was up, I hung up and called back and got an English speaking person. SHE was very helpful, listened to my problem, agreed to give me a one-time fix ticket. They paid for the postage. When I got my computer back it was mostly fixed.

The problem was the module at the back of the computer where the power cord plugs in. It was defective. They replaced it and it worked fine after that, except that when it goes into sleep mode it will not wake up. I fixed that by turning off all the sleep mode options. BTW, a friend of mine with the same computer is now having the same problem.

Hi

You can obtain the Recovery disk from Toshiba. Toshiba hotline number 1-800-457-7777 (US) 0844 800 6020 (UK). You need to provide your computer's part number correct to get the matching recovery disk. Usually they charges $39.95 including shipping to your address in US. Alternately you can go to http://uk.computers.toshiba-europe.com/cgi-bin/ToshibaCSG/generic_content.jsp?service=UK&ID=Support_Homepage_uk

Good Luck

If you boot a XP cd and select repair will it let you type?