Hi @nickthekidnl ,
Here’s a link to the [http://h10032.www1.hp.com/ctg/Manual/c05219193|service manual] for your laptop.
Scroll to p.40 to view the necessary pre-requisite steps and then the procedure to remove the HDD.
If you have an SSD installed scroll to p.42 to view the necessary pre-requisite steps and then the procedure to remove it.
If you wish to replace the drive(s) with the same make and model capacity drive etc, the part numbers are listed at the top of the the page (40 or 42).
If you search online, using the part number ''only'' in the search box of your browser, you’ll get results for suppliers of the part.