Everything mechanical, or electronic, breaks down and nearly every computer made is expandable. This is also true of your Toshiba notebook but to be honest, as far as notebook technology has progressed, it is still not a great idea for you to go poking around in your notebook unless you really know what you are doing. But there are some upgrades you can do yourself and there are some repairs that can easily done for you by a technician using either generic replacement parts or Toshiba notebook parts. Then there are the things that look like they cannot be fixed but can be fixed using only Toshiba notebook parts.Then there is the fatal stuff.
Lets examine some circumstances to determine if your laptop is completely gone or if you can use Toshiba notebook parts to fix it.
Upgrades
Generally speaking any notebook computer can be upgraded. Look at your owners manual or go online to determine what parts can be replaced. Normally you can upgrade your hard drive and memory but unless you know how to do this you should take it to a professional.
When it comes to memory you are probably better off using genuine Toshiba notebook parts on that but hard drives are made by other manufacturers and you need to check your manual for compatibility.
It is not possible to upgrade your laptop screen. If you would like or need a larger screen then you will need to get a new laptop.
Dead notebook
Even though notebooks are much more durable than they used to be, dropping a laptop that is not protected by some sort of case my due serious damage to Toshiba notebook parts and circuits. Dropping the notebook in water may be fatal.
Parts That Can Be Repaired
Even thought notebook screens cannot be upgraded they can be repaired. A bad battery and also the main power supply can be replaced as well.
Using Toshiba notebook parts the CD-Rom and DVD drive can be upgraded or replaced.