Did you install Windows on the new drive? Always tell us users what model computer you have.

On many recent vintage systems, there is often more than one drive installed - did you replace the correct drive?

HI @Jazteen14  to check Drive health, you could use the free Crystal Disk Info application from Crystal Mark. It works with all drives, HDD, SSD, etc. and has a good user interface. Clicking on top right hand arrow will take user to the other drives. 

Is there a way to get the windows I had originally with this laptop back?

My laptop was acting up about 2 years ago and my bf completely wiped it clean. Deleting the windows it originally had. My bf ended up installing an unlicensed windows... would that have anything to do with what's happening now?

I have alienware 17 R4 

I did not install windows on the hard drive 

Could that be a reason it's still saying theres a hard drive failure?

Hi @Jazteen14  within local admin account, download, install, Restart and open Belarc Advisor, this will capture your system profile, including the status of the system licences. If the system is not complaining with screen prompts to get a Windows licence, it is happy. If it is not broken, do not fix it. 

The hard drive problem is unrelated to Windows licence status. 

If your Windows licence is registered in your Microsoft account, it will have reapplied the original Windows licence for you. If you have the original documentation that came with the 17 R4, you might have a paper copy of the Windows licence, that can be inserted in the Windows update licence option. However, if Windows is using the original licence (compare your paper copy with your computer profile) and/or seems to be working and accepting Windows Updates, best leave it alone. 

Hi @Jazteen14 does the system continue to give "Hard drive smart predictive failure..." message?

Is the operating system Windows 10 x64?