In general, it's simple to have minor upgrades on laptops. Here are some of the laptop parts that you can upgrade cheaply and easily:
RAM
RAM is perhaps the easiest component to upgrade. It’s
cheap, easy to install, and an effective way to boost performance. In most
laptops, you simply remove a couple screws to release a panel on the bottom,
then slide the RAM into an empty slot and replace the panel.
Hard Drive
The most important part of a hard drive upgrade is making
sure your files are either backed up or that you’ll be able to access them
after the replacement. A common method of accomplishing this is to copy files
to an external hard drive, or to put your old hard drive in an external enclosure.
Optical Drive
Note that optical drives are getting steadily less useful as
more and more types of content are distributed online. You may have better luck
installing a second hard drive in that optical drive bay, especially if you're
looking to add an SSD boot drive to your system. This is made easy with optical
drive caddies, available with mounting instructions.
LCD Screen
It is possible to replace your LCD screen, but usually only
with an identical model. However, certain higher-end notebooks like the HP Envy
and Dell XPS do offer upgraded screens as an option, and it may be possible to
find those screens from eBay, Amazon, and the like.
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