If this is the case, you can enable it quickly using Device Manager. In the rare case that the storage does not appear in Disk Management and File Explorer, it could mean that the hard drive seems to be disabled.

How to fix missing hard drive in File Explorer using Device Manager

Once you determine that it is not a physical problem, you can use the following recommendations to fix the most common problem preventing File Explorer from showing a hard drive. Since the motherboard firmware is a different per manufacturer and even per-device model, check the manufacturer support website for more specific instructions. Access the computer's Basic Input Output System (BIOS) or Unified Extensible Firmware Interface (UEFI), and make sure the firmware detects the storage.Connect the drive to another computer to determine whether the problem is not the device.When checking the internal components, power off and unplug the computer before beginning the process. If it is an internal hard drive, ensure the data and power cables are correctly connected to the storage device, motherboard, and power supply.If you use a USB hub, connect the drive directly to the computer. If it is an external USB hard drive, disconnect and try a different USB port.Confirm the hard drive is correctly connected to the computer and receiving power.

Hard disk management