Hard Drive only visible in BIOS. (No disk/partition detected)

[Ram09]

Hi everyone, I'm really stuck and hoping someone can help me figure out what I messed up.

My laptop has been caught in a frustrating "Preparing Automatic Repair" loop every time I boot up. I tried to fix it using the Command Prompt from the advanced options, but I think I made things worse with diskpart.

Here's what I did (and where the trouble started):

I ran diskpart then list volume and I selected the volume letter

I then used an assign command, intending to assign it or make it the primary partition (I honestly can't recall the exact command, but it was related to making it "active" or "primary").

The current critical issue is:
​When I run diskpart and then list disk, no disks are showing up—my main hard drive is completely missing. However, the hard drive IS still visible in the laptop's BIOS/UEFI settings.

I cannot clean install Windows 11 using a bootable USB—the installer says there's no drive to install to. What can I do to get my hard drive recognized again so I can install Windows or even attempt a repair? Did my diskpart command somehow hide or mess up the disk's visibility to Windows?

Any guidance or specific command suggestions would be hugely appreciated!

Laptop Model: (Asus vivobook X442u)

 

[SIW2]

Have you tried booting some kind of linux media and see if that recognizes the disk.

 

[siliconbeaver]

The disk can be dead or broken.

You can remove it from laptop then attach it to a good computer. See if you can fix it.

The laptop released Feb 2019. Should be compatible with Windows 10/11.

I cannot clean install Windows 11 using a bootable USB—the installer says there's no drive to install to.
Laptop Model: (Asus vivobook X442u)