Toshiba Satelite L655d - black screen after toshiba logo/splash screen

[b-bwoy425]

The laptop would turn on, I would see the option for the bios menu and the boot menu on the Toshiba splash screen, but then once the screen clears, i see a little cursor blink about 4-5 times, then the screen just stays black. I thought it was a very bad virus, so i pulled the HDD out and cleaned it up. I reinserted it. When i go to the bios menu, i am able to see the hard drive, all of the RAM and the cpu. I've tried pulling out the ram sticks (each one at a time, then both). No luck same issue, and when i go to the boot menu and select boot from HDD, it gives the same black screen. I am able to boot from a bootable USB drive to load a windows 7 startup repair. But it doesn't find any problems. What could be wrong? I want to avoid formatting/reinstalling.

**I've also pulled the battery out, held the power button for 30 seconds, then reinserted the battery and powersupply, and tried to turn it on, same problem.

 

[hang-the-9]

Try running TestDisk, you may have lost the partition information. May also be a bad hard drive. The blinking cursor is often the system seeing the drive but not finding a way to boot from it.

 

[b-bwoy425]

How can i do that? Also, when i hit F8 (slow or fast), nothing happens. It just continues to the black screen

 

[hang-the-9]

You can get TestDisk from this boot disk http/www.ultimatebootcd.com/
It also has drive check utilities you can use to run a diagnostic on the drive.

 

[b-bwoy425]

Tried that and it didn't work, i kept getting a message saying "Missing Operating System". I figured a virus must have deleted some very critical start-up files. So i went ahead and backed up the user data, and reinstalled windows 7. No problems since then (knock on wood).