If your PC experiences signs of hard drive failure, it is better to replace the disk before it completely damages.
You want to upgrade to a large hard drive when the disk space is not enough.
The PC runs slowly and you plan to replace your HDD with an SSD to get fast speed.
When you encounter one of these cases, hard drive replacement is necessary: You may need to replace your hard drive no matter you are using a desktop or laptop.
How to Replace Laptop Hard Drive and Reinstall Operating System FAQ.
Easy Way of Replacing a hard Drive Without Reinstall Windows.How to Replace Laptop Hard Drive and Reinstall Windows 10.