Hi Baraka,

Check if the hard drive is detected in BIOS (restart the computer and hit F2 on Dell logo).

You can also run diagnostics on the computer to check if the hard drive is fine.

As the computer boots, press when the Dell Splash Screen appears.

When the Boot menu appears, highlight the Boot to Utility Partition option, or the Diagnostics option and then press to start the 32-bit Dell Diagnostics. 

Press the key to highlight Test System Press to continue to 32-bit Diagnostics.

• Express Test will run a quick test of devices in the system. This typically can take 10-20 minutes.
• Extended Test performs a thorough check of devices in the system. This typically can take an hour or more.
• Custom Test used to test a specific device or customize the tests to be run.Exit to MS-DOS will exit the diagnostics to a command prompt.
• Symptom Tree: This option lists the most common symptoms and allows you to select tests based on those symptoms.

Select custom test and select hard drive and run diagnostics.

Let me know the system model so that I can help you better.

Awaiting your response!