How do I fix a hard drive that failed to boot?

A hard drive failing to boot can be caused by several different issues. Some common reasons a hard drive may fail to boot include mechanical failure, corrupted system files, improperly configured BIOS settings,Loose cables, or failed boot sector. Fortunately, there are a number of steps you can take to attempt to fix a hard drive that fails to boot.

Quick Overview of Potential Solutions

Here is a quick overview of some potential solutions for a hard drive that fails to boot:

  • Check cables – Make sure all power and data cables are properly connected.
  • Boot to a bootable disk – Try booting to a bootable USB or CD to access the hard drive.
  • Replace cables – Faulty cables can cause boot issues, replace SATA and power cables.
  • Check BIOS settings – Make sure the BIOS is recognizing the hard drive and boot order is correct.
  • Replace hard drive – If the hard drive has mechanical failure it may need to be replaced.
  • Use data recovery software – Software can potentially recover data from a failed hard drive.

Step 1 – Diagnose the Issue

The first step in fixing a hard drive that fails to boot is to diagnose the actual cause of the problem. Here are some things to check:

  • Is the BIOS detecting the hard drive? – Enter the BIOS setup and check if the hard drive is listed.
  • Does the drive spin up? – Listen for spinning sounds when powering on.
  • Are there error messages? – Note any error messages displaying on the screen.
  • Can you access the BIOS menu? – If not, it could be a motherboard or connection issue.
  • Will it boot to a CD or USB? – Try booting to a boot disk to isolate the hard drive.

This information can provide clues if it is an issue with the connection, a mechanical failure, or something like a corrupted boot sector. Knowing the specifics of the issue will direct you to the proper solution.

Step 2 – Check All Connections and Cables

One simple issue that can cause a failure to boot is a loose or faulty connection. Check the following connections:

  • Power and data cables – Make sure the SATA and power cables are properly and securely connected to the hard drive and motherboard.
  • Try different cables – Swap out cables to determine if the issue is caused by a faulty cable.
  • Reseat cables – Remove cables and reconnect them to ensure a proper connection.
  • Connector contacts – Check that no pins are damaged or dirty in the data and power ports.
  • Motherboard connections – Check that the motherboard power and data connectors are not damaged.

Loose, damaged, or improperly connected cables are common causes of boot failures. Carefully inspecting and reseating all connections can often resolve simple connection issues.

Step 3 – Check BIOS Settings

The motherboard BIOS needs to have the hard drive properly configured in order to boot. Here are some key BIOS settings to verify:

  • Boot order – Make sure the BIOS boot order lists the hard drive as the first boot device.
  • Drive recognition – Verify the BIOS setup shows the hard drive listed.
  • AHCI/RAID mode – The SATA mode needs to match the drive, AHCI for most drives and RAID for some.
  • Drive model number – Check that the model number matches the physical hard drive.

If the BIOS is not properly recognizing the hard drive it will fail to boot. Changing the boot order or SATA mode may resolve boot issues if the drive displays in the BIOS.

Example BIOS Settings

Here is an example BIOS boot order for a properly configured hard drive:

  1. Main Hard Drive [Model Number]
  2. CD/DVD Drive
  3. USB Storage

The hard drive needs to be listed first in the boot order. The BIOS also needs to recognize the drive model number and have the proper SATA mode configured.

Step 4 – Attempt Booting From a Disk

If the BIOS sees the hard drive but it still will not boot, try booting to a separate boot disk. This helps determine if the issue is with the hard drive itself or an operating system issue:

  • Bootable USB – Create a bootable USB drive and change the BIOS to boot to it.
  • Windows install disk – Use a Windows installation DVD or USB to try booting to it.
  • Linux live CD – Boot to a Linux live CD/USB which loads Linux without installing.
  • Hard drive tools disk – Use a boot disk with hard drive diagnostics and recovery tools.

If a boot disk or USB is able to boot, it points to an issue with the hard drive rather than a motherboard connection problem. You can also use these disks to access the drive and recover data or perform diagnostics.

Creating a Bootable USB Drive

Here are the basic steps to create a bootable USB drive:

  1. Get a 4GB+ USB flash drive and backup any data.
  2. Download the Windows 10 Media Creation Tool from Microsoft.
  3. Run the Media Creation Tool, select Create Installation Media, then USB.
  4. Select the USB drive and it will download Windows and make it bootable.

You now have a bootable USB drive that can be used to boot a computer with a non-working hard drive. This method also works for creating Linux boot USBs.

Step 5 – Run Hard Drive Diagnostics

Once you have accessed the hard drive using a boot disk, you can run diagnostic software for additional testing. Two options for diagnostics include:

  • Manufacturer tools – Most hard drive brands like Seagate and Western Digital have free diagnostic and testing tools available for download.
  • Third party software – Products like HDTune and SeaTools can do drive tests, benchmarks, error scans, and SMART status checks.

Diagnostics tools can find problems like bad sectors, mechanical failures, and check the overall health status provided by SMART data. Use both the manufacturer and third party utilities for the most thorough testing.

Checking SMART Status

One important diagnostic check is the SMART status. This displays information from internal hard drive sensors about reliability and potential failures. Here is how to check it:

  1. Boot to a USB or disk that can access the hard drive.
  2. Open the disk utility software for your OS – like Windows Disk Management.
  3. Right click on the hard drive and select Properties.
  4. Go to the Tools tab and click Check.
  5. The SMART status will display any errors or indicate a PASS.

SMART checks can detect issues even before total failure. A SMART status showing a high error count indicates a problem with the physical hard drive.

Step 6 – Attempt Drive Repairs

If diagnostics find issues that are localized like bad sectors, you may be able to repair the drive:

  • CHKDSK – This built-in Windows utility can detect and repair filesystem errors.
  • SFC scan – The System File Checker can restore corrupted system files on Windows.
  • Start up repair – Windows includes an option to perform start up repair and fix boot issues.
  • Third party tools – Software like SpinRite dynamically repairs hard drive sectors.

Running repairs can potentially fix boot issues caused by file corruption or localized damage on the hard drive. However, this will not fix mechanical problems.

Example CHKDSK Commands

CHKDSK usage from a command line:

chkdsk C: /f - Fixes disk errors on drive C
chkdsk C: /r - Locates bad sectors and recovers readable data
chkdsk C: /x - Forces dismount first if required

CHKDSK can fix file table corruption and rewrite data from bad sectors. Use the proper switches for your specific issue.

Step 7 – Remove and Replace the Hard Drive

If all else fails, you may need to replace the hard drive entirely. Some signs it needs replacement:

  • Mechanical failures detected.
  • Multiple bad sectors that repairs cannot fix.
  • Critical SMART errors and high failure counts.
  • Drive is making unusual noises like clicking or grinding.
  • Drive fails to spin up.

With severe physical damage or mechanical failure, a new hard drive will be required. The old drive can still potentially be accessed after removal using a USB hard drive enclosure to recover data.

Installing a New Hard Drive

If replacing the hard drive, here is an overview of the installation steps:

  1. Buy a compatible replacement drive – Match specs like interface, size, RPM.
  2. Clone existing drive – Use software to clone the old drive to the new one.
  3. Clean install OS – Option to do a fresh OS installation instead.
  4. Physically install drive – Mount in bay or external enclosure.
  5. Restore data – Copy data back after OS installation.

Taking the opportunity to do a fresh OS install when replacing the drive can fix software issues. Just be sure to backup data first.

Step 8 – Use Data Recovery Software

If the drive has failed completely, data recovery software may be able to recover some data:

  • Recuva – Free recovery tool from Piriform for finding deleted files.
  • EaseUS – Affordable paid tool for recovering data from corrupt drives.
  • Ontrack – Advanced paid recovery for severe drive damage.
  • SpinRite – Can repair damaged sectors to restore data.

Data recovery is not guaranteed, but offers a last resort when all else has failed. Be sure to recover data before reformatting or disposing of the failed hard drive.

Preventing Data Loss

To avoid severe data loss in the future:

  • Keep at least 3 copies of important data – such as on an external drive and cloud storage.
  • Perform regular file backups.
  • Use a RAID array for redundancy and data protection.
  • Monitor drive health with tools like SMART to receive early warnings.

With proper backup practices, failed drives become an inconvenience rather than a catastrophe. Keep redundant copies of all critical data for protection.

Conclusion

A hard drive failing to boot can be stressful, but is often repairable. Following the step-by-step troubleshooting approach can methodically diagnose and resolve the underlying issue:

  1. Diagnose problem and check connections.
  2. Verify BIOS settings are correct.
  3. Attempt booting from a disk.
  4. Run manufacturer and third party diagnostics.
  5. Use built-in utilities or software to repair errors.
  6. Replace the hard drive if necessary.
  7. Recover data using professional software.

With a combination of mechanical, software, and connection troubleshooting the majority of non-booting drives can be repaired and recovered. Just stay calm, work through the options, and be sure to always keep a backup of critical data.