How to Check and Fix Hard Disk Errors

Your computer’s storage relies on the good performance of its hard disk drive. When a hard disk drive starts to fail or experience errors, your documents, photographs and much more could be at stake – not to mention, a string of hardware and software issues could plague your PC. Needless to say, it’s very important that you know how to check and fix hard disk errors, but there’s absolutely no need to struggle alone! iolo’s System Mechanic Pro® fixes critical problems with a click, and scrubs through hidden junk files to free up valuable space on your computer.

Still, it’s better to be safe than sorry. Know the most common hard disk errors and how to beat them before you invest in capable software by reading on for more, below.

The Most Common Hard Disk Errors

The most common hard disk errors include, but are not limited to:

  • Bad Sectors – Referring to sections on a hard disk where data cannot be read or written well. This could be due to a physical malfunction, or a software mishap.
  • File System Errors – Refers to an error with the way data is organized and stored on your hard disk, often caused by software bugs, improper shutdowns or malware.
  • Read/Write Head Issues – Referring to issues with the actual read/write heads of your disk, which read and write data onto the disk’s platters. Sometimes caused by manufacturing defects or wear and tear over time, and can unfortunately make your data inaccessible.
  • Firmware Corruption – Firmware refers to the software embedded in your hard disk’s actual hardware. When corrupted by malware or incomplete updates, it can cause your hard disk drive to become completely unresponsive.
  • Interface Errors – When your hard disk drive can’t connect to your computer’s motherboard or controller, interface errors occur, generally caused by faulty cables and connectors – data corruption or transfer failures can happen as a result.

To check and repair these errors – though they sound intimidating! – there are a few things you can do.

  1. Check your hard disk for errors through Windows

When checking your hard disk for errors through Windows, you need to open File Explorer and press the ‘Windows key + E.’ Then, select “This PC” and right-click on the drive you need to check – labelled ‘C:’ for the main system drive. Then, you can select ‘Properties’ from the context menu. Afterwards, click on the ‘Tools’ tab, then under error checking, opt to ‘Check’! A new window should appear asking for permission to scan drive, which you should give. This in-built tool will scour your PC for errors, attempting to fix them. Depending on the specs of your hard disk, this could take time.

  1. Check your hard disk for errors through Command Prompt

Many people prefer the speed and efficiency of checking their hard disk for errors through Command Prompt. To do so, press your ‘Windows key’ and type ‘cmd.’ Right-click on “Command Prompt” and then “Run as administrator.” In the command prompt window, type out: chkdsk /f C: – of course, replacing C: with the drive letter you’d like to check. Then, follow all of the instructions that come after!

Unfortunately, fixing hard disk errors can be more complicated if they go beyond what your computer’s utility tools can resolve. Often, it’s worth updating the disk controller driver from your PC’s Device Manager. Factory resetting Windows has also previously proven useful, though as a last resort. This would erase all of the data and settings on your hard disk drive for a fresh start. If this option doesn’t sound appealing, third-party tools – like iolo’s System Mechanic® – are a viable option that take the stress out of your hands.

How iolo’s System Mechanic can help you fix them

iolo’s PC optimizer can help you fix challenging hard disk errors through its innovative Repair & Clean function, and also its ability to boost your system speed. The LiveBoost feature automatically increases the speed and availability of your hard disk drive resources, and with an automated one-click solution, the Repair feature can fix critical issues whilst freeing up valuable disk space. This is because iolo’s System Mechanic® is the culmination of a variety of different products, including PC cleaner, antivirus and data security software, to bring your PC to the next level – hard disk included.

Sound too good to be true? Check out our frequently asked questions, here.

Contact iolo for more information, today

To keep your hard disk drive in top condition, performing at its best and thereby keeping all of your data safe, don’t hesitate to contact iolo for more information about our System Mechanic® software, designed with the health, longevity and function of your PC in mind.

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What is iolo's Whole Home License?

The Whole Home License® is iolo’s licensing policy that allows you to install and keep your software running on all of your compatible devices within the same home. Previously, users were allowed to install and license their iolo software simultaneously on a maximum of three PCs. Under the Whole Home License, a single activation key allows you to use your iolo software on all of your PCs, other than any PCs you use for business purposes. What you need to know about Whole Home Licensing

  • You, your spouse, and your relatives living within the same household may use the same license on any number of PCs that you own which are not used for business.
  • For full legal terms and conditions, see

To install your iolo product on additional PCs:

  1. On the additional computer, download the latest version of your iolo product. Choose from the list of downloads offered here.
  2. Follow the steps in the installation wizard, and enter the same Activation Key that you used to install on your original computer.

You can view the Activation Key on the original computer from within System Mechanic > red menu bar > key icon > Activation Key.