Need help with Toshiba satellite l755

Hi! I recently have problems with my laptop,basically it just doesn't want to load the desktop or screen where it say Welcome. The all I have it is just black screen with cursor on it, and nothing happens next, I have waited for a long time but nothing happens again it just does not respond.
When i restart it sometimes gives me a message that there is no bootable device. Sometimes i am able to get to boot manager (F12) and try HHD recovery but i still get the same black screen. Whatever i do i can't get to desktop laptop just kind of hangs up on a half way of starting up.
It might be helpful.

Help please,or give me any advice I have no idea what to do, i wanna solve the problem by myself.
Thank you.

 

Is your laptop still under warranty? If so, give Toshiba CS a ring.

I'm not an expert with booting trouble, so I could likely be wrong, but it could be a failed harddrive.

You can try to reseat [remove and re-install] the hard drive.
This link shows how to remove the hard drive [see step 5]: How to disassemble Toshiba Satellite L775, L775D, L770, L770D laptops >> Page 1

Lastly, if you created your System Restore Disks, you can try to perform a factory reset. Set the Optical Drive as priority in the boot order.


Good luck and keep us posted with results.

 

Yes,I still have warranty,but just wanted to do by myself,and do not go to warranty center.
But thanks a lot anyway,and I will tell you about my results.

 

Looks like your MBR (Master Boot Record) on the hard disk is corrupted.
In case you have been a cautious user and have done your W7 recovery disk or usb stick as recommended , simply boot from there (press F12 and choose proper boot drive) and once the Recovery Console comes up start the automatic repair process.
Provided your hard drive is functioning -which it should given that its properly registered as per your screenshot above- the automatic repair solves most of the boot problems all by itself.
In case you have not done your Recovery Disk, things get a bit more ugly..

 

That is the worst thing that I haven't done,I do not have recovery disk. I was trying to boot from USB but it didn't work,I mean reinstall the windows 7.I have done everything you said,but it didn't work.
I have done windows installation on other PC from USB, and did work.
Thanks for help anyway. I will keep up you with my results.
And one more question,will it help if I try to reinstall Windows from CD??

 

For whatever reason Microsoft does its best to take down sites offering free download of the official MS Recovery Disc Image - the following site is still up:
Download a repair/ recovery cd for windows 7 and windows Vista
Download the ISO (32 or 64bit), burn it to a CD and try the startup repair.

I assume that you have not accidentally changed in the BIOS the Disk Mode from AHCI to IDE ? Somewhat hidden deep and I have to reboot first to access the BIOS and note the Menu-Tree myself ;-)
Also 'Boot Speed' should be set to 'normal' and not 'Fast' if alternative boot-locations are used.

Edit: Did the reboot & Bios locations as follow [just to make sure... ;-) ]
-Boot Speed Normal: First item under "Advanced"
-AHCI Mode: Advanced -> System Configuration -> SATA Controller Mode AHCI

Reinstalling from a CD other than the set created by the "Toshiba Recovery Media Creator" results almost certainly in the loss of your current W7 license.
Edit: Not really - found my W7 Sticker with SN&Product Key inside the battery compartment
Worse the hidden partition "HDD Recovery" containing your original Toshiba W7 Home license and in total 14 GB of Toshiba Utilities, Drivers, Bloat Ware,... gets almost certainly deleted during the re-partitioning process which is part of the standard installation procedure.
There are ways around this, but somewhat tricky to say the least and not really necessary at this point.

 

Thanks,I will try that.
But what is the difference if I try to boot windows from USB or cd??

 

It's been a while since I played around with this, so had to give it a try to be sure

And the verdict is: No difference
Bios seems to be smart enough to handle USB Boot without any modification.
So a simple mount of the ISO file in something like DVDFab Virtual Drive plus copy all (incl. hidden) files to the USB stick does the trick.
(just to be sure: Root contains 1 file: bootmgr and 2 directories: boot, sources)
Alternatively WINRAR or similar are also able to open the ISO.

The USB connector on the left is the new USB 3.0 - I only tried it with the USB 2.0 connector on the right hand side..
A bit tired of rebooting now so....

 

Thanks man so much!!

 

My HDD was dead,now I got another one and it works.

 

Welcome to the Club
Had to replace my one after 6 months as well - based on many other postings looks like a bad batch of drives.

But can't really complain - for once SMART did its job and warned me early on and I got a bigger drive in exchange.
Btw, thanks for letting me know