There are two mechanical standards for optical drives in "modern" laptops.
First let me define "modern Laptop" in simple terms.
SATA Hard drive, easy enough?
Now onto the optical drive typically up to about 2008 or so these are IDE.
Later on these too are SATA but not the same connector as the hard drive
but you can see the family resemblance in the connector on the optical drive.
there is often only ONE screw that retains the optical drive in most laptops but the tiny bracket that screw engages will have to be moved to the DVD-writer
There are typically "appliances", screwed on, stuff like side shims and
the drive drawer bezel that MAY need to be swapped over from your
old drive to your new one.
Typically all you need are a a jewlers screwdriver set and some
mechanical ability to move these pieces and insall the drive in the computer.
When powering up the computer there should pop a notification message
that the computer is installing device drivers (allow this process) and
possibly telling you the computer must restart to finish installing those drivers.
The important thing to know is that this usually runs automatically if it doesn't you could have a problem...