Hard Drive Failure Signs – And How to Replace A Failed Hard Drive

Today we’ll be covering how to recognize hard drive failure signs – a skill that has the potentital to save you a lot of pain, heartache and frustration over potentially lost data on a failed hard drive.

This article will teach you some of the early warning signs of hard drive failure and what you can do about it. Usually when a hard drive is on it’s way out, it’s time for replacement, so we’ll be covering how to replace a failed hard drive as well.

All Mechanical Drives Will Fail

First up, if you have a mechanical hard disk drive, let’s get this out of the way:

It’s inevitably going to fail, at some point. The question is, when?

The main things that can cause hard drive failure include:

  • Physical trauma (e.g. bumps, dropping)
  • Excessive temperatures
  • Time (general wear and tear)

Since mechanical hard disk drives are a system of mechanical parts, at some point, it will die. The aim of this article is to help you identify early warning signs so that you can take the necessary action to prevent loss of data and make the transition to a new drive as painless as possible.

What Happens If My Hard Drive Fails?

Let’s take a moment to now talk about the implications of a hard drive failure. What will it mean for you?

You computer’s hard drive is the main storage hardware for everything on your computer. This is the non-volatile (meaning it holds it’s information even when your computer is turned off, unplugged, or not connected to power) memory space that stores key files that make your computer actually useful – including your computer’s operating system, and let’s not forget, important files such as family photos and past tax returns.

Yes, losing all your computer data could feel this bad.

If your hard drive fails, the magnitude of the impact it has on you may very well depend on how your computer hardware is currently set up. Some people may be able to sustain a hard drive failure without much of an issue (if they have their data appropriately backed up), but for most, a hard drive failure could be catastrophic in terms of data loss.

Why Early Action Is The Best Action

If you think your hard drive may be on it’s way out (yes, they definitely do have a finite lifespan), then your best option is to take action as early as possible.

Often hard drives fail slowly, meaning they exhibit classic warning signs that can be recognized and acted upon. In most cases, your hard drive may still operate for a few more weeks, months, or if you’re lucky, years – giving you valuable time to copy and back up any critical data/files that you’d like to keep, and transfer these across to a new hard drive (though you may even opt for a solid state drive these days).

Failure to take early action means that you may suffer from a catastophic hard drive failure – one day your hard drive just stops working, and at this point files and information stored on the hard drive become a lot more difficult to recover.

Common Hard Drive Failure Signs

  • Computer slows to a crawl
  • Loading items starts to take ages, if they load at all
  • Hard drive makes noises when doing read/write operations, or copying large amounts of data
  • May get stuck loading
  • Keyboard or mouse freezes and you are forced to hard reset
  • Your computer frequently ‘hangs’ or freezes, forcing you to do a hard reset
  • Files are corrupted after copying or saving
  • File loss
  • You open the file and there is foreign characters interspersed among the text
  • Video files start to skip
  • Computer hangs on boot-up
  • Message on boot up saying that one of your drives needs to be checked

The key to recognizing hard drive failure is if these signs tend to appear regularly. The occasional computer freeze is not an issue, but if you are frequently having to hard-reset your computer because it locks up and becomes unresponsive, as well as performs very sluggishly, then it’s a good sign that hard drive failure is imminent.

Immediate Action To Take

Identify any critically important files on your computer and back them up to a USB storage drive, portable hard drive, CD/DVD, or maybe even a second hard drive if you have one installed.

portable hard drive
A typical portable USB hard drive, these larger drives usually have plenty of storage space (as opposed to the smaller USB Thumb Drives).

These exact hard drive failure warning signs started being displayed on my laptop computer recently, so I went and purchased a portable hard drive to back up my data on.

I picked up one of these Western Digital portable USB hard drives to back up my important data from my failing hard drive.

I continued to use my laptop until I was able to do something a bit more permanent about the failing hard drive on it, but the portable hard drive was a good insurance against complete file loss, and is a good way to achieve some peace of mind.

How To Back Up Your Data

Bear in mind that copying across data from your dying hard drive to a new drive loads the hard drive quite heavily.

To copy data from your hard drive, the internal disk will need to spin and read each bit of data in the files you are trying to copy – and these bits may be scattered in different locations on the drive. In short, copying data off the drive is almost like forcing an already exhausted runner to sprint another quarter mile.

Inside your hard drive, the disk will need to spin and the arm move to read the appropriate data – as you can see, there’s plenty of moving parts, which unfortunately means many potential failure points.

There is a chance that the hard drive may fail while you are copying data across, so it’s wise to have a think about where your most critical files are located, and back up your data in order of priority. Avoid scheduling too many operations at once, as this also loads up your computer hardware and can put more strain on your hard drive.

Ideally, you want to select the files you want to back up, and drag and copy them to the new storage location (e.g. a portable USB hard drive).  Once you’ve set this operation, give your computer a break to allow it to copy the files, without having to deal with you multi-tasking it with other operations, like trying to browse the net or update your latest finance spreadsheet. Either walk away and come back later once it has finished copying, or you can just watch the screen to see how it goes.

Copy your data in batches, if you have a lot of it, and in order of priority/importance to you. For example, I copied my tax  records and financial data first, then my photos and videos, then my old school files from college days.

How To Replace A Failed Hard Drive

This video is a great guide to how to replace a hard drive with another hard drive (as opposed to replacing your hard drive with a solid state drive).

It’s from back in 2011, but the principle is the same – just bear in mind that the grey IDE ribbon cables that are mentioned in the video are very rarely seen nowadays! They were old technology back then, so fast forwarding to 2016, they’re definitely outdated now. SATA drives are what you’ll see today.

Once you’ve replaced your hard drive, you’ll need to load your old data back on to it, and probably reinstall your operating system and any other programs you may have had. Another alternative is to do a direct full hard drive copy, by running both drives powered at the same time – this will prevent you from having to reinstall your operating system and applications, but requires a little more know-how.


We’ve covered some of the common warning signs of an imminent hard drive failure, as well as what you should do if you start to recognize any of these symptoms. Look out for sluggish operation of your computer, noisy hard drives, frequent computer hangs or file copy/transfer errors.

The best way to handle a failing hard drive is to perform a back up by transferring important files over to another storage device as soon as possible. From there, replace the failing hard drive before it fails catastrophically and limits your ability to access your data.


  1. Thanks for the heads up that a faulty hard drive could affect your computer’s overall speed and it may also cause file corruption. I want to help my colleague with his plans of investing in a gaming PC so we can play games every weekend. I think he should consider finding a local computer repair expert if these issues start to happen.

    • Thanks for your comment Zachary. In our experience, it can sometimes not be worth getting a repair expert involved (depending on the symptoms). We’ve seen cases where the cost of getting a repairer involved can sometimes be more in labor time than just replacing the suspected faulty part.
      That’s not to say that people should never use a repair technician, but if you’re able to do some basic troubleshooting yourself and narrow down the likely cause of the issue it can sometimes solve the issue.
      For those who do choose to get help from a local repairer, we’d recommend to get as much prior quotation from that repairer about the expected costs involved. We’ve seen cases where the cost of a repair person to track down an unclear issue has costed the consumer more than it would have cost to replace the entire PC, for example. Of course you don’t always know these things going into it, but just something to be aware of.

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