Is the hard drive in your Toshiba L755 having issues? This guide will show you how to replace it.

Note: This guide does NOT cover operating system installation. You will need to figure this part out yourself.

Some notes for this guide:

  • This computer REQUIRES a 7mm-9.5mm adapter for installation of a 7mm hard drive, which covers all modern Advanced Format drives. You will have to stick this to the top or bottom of your replacement hard drive. For a traditional spinning drive, I would suggest the bottom. If you use the top, cut it out to make room for the breather hole. The adapter in question can be found on eBay if you do not have one on hand. No modification is needed for SSD's as there is no breather hole.
  • If you are reinstalling Windows, buy a OEM DVD that does not include a key if you just need the media and your product key is not worn out. If it is worn out, you will need OEM media that also comes with a product key. If you can find a Digital River ISO, this will work. Media other then Digital River images should not be trusted.
  • For Linux, you can find the distro you want from the official website and download it from there.
  1. Remove the battery from the laptop. To do this,  by unlocking the battery from the computer, and then hold the spring release clip back, while pulling the battery out of the laptop.
    • Remove the battery from the laptop. To do this, by unlocking the battery from the computer, and then hold the spring release clip back, while pulling the battery out of the laptop.

    • Optional: Once you remove the battery, hold the power button down for 10-15 seconds to drain the system. This is optional, so you don't have to do this if you choose not to.

    Agregar Comentario

  2. Remove the 2 screws from the hard drive door. Lift the door up with a plastic pry tool.
    • Remove the 2 screws from the hard drive door. Lift the door up with a plastic pry tool.

    • If you have one available, you can use a spudger as well. However, plastic pry tools will suffice.

    Agregar Comentario

    • Remove the screw holding the hard drive in the computer. Slide the drive backwards to remove it from the laptop.

    Agregar Comentario




    Spread the Fixmas cheer.


    Spread the Fixmas cheer.

    • Remove the hard drive mounting bracket. Loosen the 2 highlighted screws to remove it from the bracket.

    Agregar Comentario

    • Screw the hard drive bracket on the new hard drive.

    Agregar Comentario

    • Reinstall the hard drive in the laptop. Put the drive in the system as shown. Push the drive forward to lock the drive in. Once you do this, screw the drive in the laptop.

    • If you are using an SSD, you will need a 7mm to 9.5mm adapter. A lot of SSD's include this, but you may have to buy one. You can stick this in the chassis of the laptop or on the drive. Note: All modern SSD's are 7mm. Hard drives are either 7mm or 9.5mm. If you are dealing with a spinning drive, a 7mm-9.5mm adapter may not be an option.

    Agregar Comentario

    • Screw the hard drive cover on the laptop. Once it is screwed in, snap it down to secure it.

    Agregar Comentario

    • Once the hard drive is replaced, install the operating system on the laptop.

    • For Windows: you will need a Microsoft or Digital River ISO, if you are getting it online. If you do not have an image on hand, it is generally considered safer to buy an OEM DVD without a product key. Unless you can find other official means to get the ISO, I do not recommend using an ISO from the Internet.

    • Non Microsoft OSes: The problem with this is I do not know what you want to install. If I know how to find it I may be able to help you, but I cannot guarantee that I know for sure and can help you find the ISO you need. As such, you are probably on your own.

    Agregar Comentario


To reassemble your device, follow these instructions in reverse order.

7 personas más completaron esta guía.


Miembro Desde 10/11/09

43,539 Reputación

34 Guías creadas


Master Techs Miembro de Master Techs


279 Miembros

758 Guías creadas

please forgive this post for being in 2018, but i had ignored the use of a SSD. i bought this model as my first portable pc. Loved it from day 1. Yet attempts to upgrade to 10( the 8 os i passed on) has left her with the Black screen of failure. hope to revive her if replacement parts and better ram cards to isn't expense. that old thing was well made. I'd dropped gallons of coffee and soda. Not 1 problem till now. thanks for taking the time, any help on this project would be nice. cheers☺

Cooper Grayson - Contestar

I’m surprised anyone is still using this guide, much less uses a laptop this old. I have a hunch it has a software issue or a exposed hardware issue that was hiding for a while.

Try booting it into a Linux distro like Ubuntu. Depending on if you have another PC available to do this, you may need to borrow a computer to download the ISO and write it to USB drive. See if you can boot into another operating system outside of Windows to rule out hardware.

If you can’t boot from Ubuntu the computer is probably beyond any form of practical repair. Based on what you described, I wouldn’t put money into it because the odds of a problem coming up again are against you, rather then in your favor. I know this probably isn’t what you wanted to hear but it’s better if I am upfront with you about your odds. I’d ask in Answers for further advice if you still want to try a cheap repair.

Nick -

Agregar Comentario

Ver Estadísticas:

Ultimas 24 Horas: 0

Últimos 7 Días: 10

Últimos 30 Días: 82

Todo El Tiempo: 6,773