Hard Drive Light Stays On And System Slow? How to Fix It

Checking the system performance of a desktop or laptop computer is an essential part of troubleshooting it and keeping it running at its optimal performance. Because of this, you should ensure that the system is running optimally and that no problems exist. However, if the system is running slow, there are a number of causes that could be the culprit. In this article, we will discuss the different ways in which a hard drive light can stay on and a system can become slower or slower after a repair is completed.

A computer has a lot of moving parts, and we haven’t even touched on the memory and video card. In fact, there are so many pieces that come together to form a perfect device, that sometimes we can’t even fully grasp the whole picture. We are lucky, however, that there are people out there that have figured out how to make the computer more efficient.

Hard drive light stays on or system gets slow. I know how frustrating it can be to see the light still on and your system still slow. Hopefully, this blog will let you know some of the most common hard drive light problems and how to fix them. If you have any additional hard drive light problems, be sure to let me know via the comment section.. Read more about external hard drive light stays on and let us know what you think.

If your hard drive indicator remains on and your system is sluggish, it is most likely due to a hardware failure or a full hard disk.

A computer with these symptoms may be aggravating since getting anything done with it takes a long time.

It may occur on both desktop and laptop computers. It may even happen after buying a brand new PC in very rare instances.

The most frequent source of this issue is a sluggish and inexpensive mechanical hard disk, or an inadequate quantity of RAM. Then there’s the possibility of a full hard disk or malware/viruses.

Important: All of the methods in this article to help you solve the problem assume that you aren’t attempting to utilize an outdated machine that can’t keep up with the demands of today’s version of Windows and other applications.

So, let’s go through the procedures to resolve the problem.

In Windows, look at the resource use.

We’ll begin by looking at the performance data in the Task Manager.

Hard Drive Light Stays On And System Slow? How to Fix It

By right-clicking on the Start button and selecting ‘Task Manager’ from the contextual menu, you may access the Task Manager.

Then, on the left, choose the ‘Performance’ tab. All of the performance information for the computer’s major components will now be shown.

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It’s quite likely that the ‘Disk 0 (C):’ drive is always displaying 100% utilization. This indicates that the hard disk is being used for purposes other than those intended, resulting in poor overall system performance.

Look at the ‘Memory’ item next. A minimum of 8GB of RAM is recommended, with the proportion utilized being less than 50% while no other programs are open or running.

If the RAM situation seems to be terrible, you may have an issue with your RAM as well as your hard drive being below the required quantity.

Before proceeding, I would also advise uninstalling any malware or viruses that may be present on your machine.

If your CPU use is also extremely high, I’d think it’s safe to assume you have a virus or malware on your computer.

Find out how much space your hard disk has remaining.

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Left-click on the ‘This PC’ icon on your desktop, or right-click on the yellow folder in the task bar and choose ‘This PC’ from the left column.

In the right pane, you’ll get an overview of all your disks on your computer after you’ve done this.

Check the ‘Local Disk (C:)’ item to discover how much free space you still have.

If you have less than 15% of your disk space remaining (or the indication bar is red), you’ll need to clean up your drive, uninstall unneeded applications, and delete some old files.

Use the Disk Cleanup program to clean up your hard drive.

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By right-clicking on ‘Local Disk (C:)’ and then left-clicking on ‘Properties’ in the contextual menu, you may get the Disk Cleanup program.

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In the newly opened panel, under the ‘General’ tab, there will be a ‘Disk Cleanup’ button. A second panel will display if you left-click on the button, allowing you to choose the things you want to clean up.

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Most things are safe to inspect; however, if the ‘Downloads’ subdirectory is present, be cautious. If you select that box, the contents of your Downloads folder will be deleted.

It’s time to delete any unneeded applications once you’ve ran the ‘Clean up system files’ and re-checked all the things you wish to be eliminated before clicking ‘Ok.’

Uninstall any program that is no longer in use or that you no longer desire.

To access the Settings app, go to the Start Menu and left-click on the gear symbol.

Click the ‘Apps’ button on the left.

A list of all the installed applications on your computer will display. When you left-click on a program you don’t want, an uninstall button appears, allowing you to remove it.

Just make sure you don’t delete any applications you’re not positive about. You may need the application at some time, only to discover that it has vanished, along with any possibility of reinstalling it.

Delete any files that are no longer needed.

Double-click on the ‘This PC’ icon on the desktop, or cleft-click on the yellow symbol in the task bar at the bottom of your screen to open Windows File Explorer.

Navigate through all of your folders, including as Documents, Downloads, and Pictures, and backup or delete any unnecessary files by right-clicking on them and choosing ‘Cut’ (then paste someplace else) or ‘Delete’ from the contextual menu.

WinDirStat is a useful application that uses a block graph to show you where all of your biggest files are on your hard disk.

This will assist you in locating the biggest files first, allowing you to clear up as efficiently as possible.

Take a look at the hard drive’s specs.

Open Windows Disk Manager by searching for it in the Start Menu or by right-clicking on the desktop’s “This PC” icon and selecting “Manage.”

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Under the ‘Storage’ item in the left column, left-click on ‘Disk Management.’

Left-click on ‘Properties’ after right-clicking on the disk linked with the (C:) drive. The disk number, drive type, and total size are shown in the grey area on the left.

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The drive’s manufacturer and model will be listed at the top of the newly opened panel’s General tab.

Use the drive’s manufacturer and model to do a Google search.

In the search results, locate the appropriate manufacturer’s website listing and click on it.

Hopefully, somewhere on that landing page, you’ll be able to look at the drive’s specs.

If your hard drive is mechanical, you should consider upgrading to an SSD. In my previous post on whether SSDs are worth it, I go through all of the reasons why.

At the absolute least, get Crystal Disk Info, which is a free application. You’ll be able to verify the health of your disk after you’ve downloaded and installed it.

If you receive anything other than a positive outcome, you should back up your drive and replace it as soon as possible.

Examine the RAM.

A machine with a limited quantity of RAM may often slow down to a crawl.

The minimum amount of RAM that every computer should have these days is at least 8GB.

By accessing the Computer Properties window, you can see how much RAM you have. Simply right-click on the ‘This PC’ icon and choose properties from the drop-down menu. Another option is to hold down the Windows key while pressing and holding the ‘Pause/Break’ key.

The amount of RAM installed on your computer will be shown there.

Make sure your operating system is up to date.

As I previously said, if you follow the procedures in my earlier post on how to stop your computer from making automatic inquiries, you will be guided through the steps to remove the majority of the undesirable viruses or malware that may be causing the hard drive led to remain on.

If it fails to eradicate all of the viruses on your system, I strongly advise you to back up all of your essential data on a separate portable drive, format your whole drive, and reinstall Windows from scratch.

Before transferring data back from your portable backup disk, make sure you have a strong antivirus installed.

Verify that the hard drive LED is properly attached.

On rare occasions, a desktop computer’s hard drive LED is attached to the incorrect pin header. This may cause your LED to remain on all the time, even while your hard disk is reading and writing data.

Although it won’t make your computer run slower, it may help you address the issue of the light being on all the time.

You can rule out this as a reason if you download and verify the motherboard’s documentation for the position of the hard drive light connection.

Simply look for the manufacturer’s name and model number on your motherboard and use Google to locate the manufacturer’s appropriate product page in the results.

Verify that the Page File is correctly configured.

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This is a parameter that, if not adjusted correctly, may have a major effect on the performance of your computer. Not only will the hard drive light remain on and the hard disk continue to function over time, but your system will also be very sluggish.

By accessing the System Properties panel (using the Windows key and tapping the ‘Pause/Break’ key) and left-clicking on ‘Advanced System Settings,’ you may customize this option.

Left-click advanced, then the ‘Settings’ button under the Performance area in the newly opened System Properties window.

Left-click on the Advanced tab, then on the ‘Change’ button beneath the Virtual Memory section.

Check the option that says “Automatically manage paging file size for all disks.” Once you’ve checked it, click the ‘OK’ button (as well as the ‘OK’ buttons on the other two open panels) and restart Windows as instructed.

If you want to learn more about changing the size of your page file, go here.


While there are a variety of reasons why a hard disk light stays on while it performs poorly, following suggestions will help you remove the majority of the typical issues that produce these symptoms.

We’ve gone over enough ground here to know that if the issue continues after following these procedures properly, it’ll almost certainly be something more severe.

If anything stated there may assist you further, I recommend reading my post on what to do if your high-end computer is operating slowly.

The drive light on your computer stays on most of the time you are not using it. This might be due to a number of reasons. You might also wonder what the drive light means. If your system is slow or hangs when you are using it, this is probably the cause.. Read more about hard drive light stays on windows 10 and let us know what you think.

Frequently Asked Questions

Why does my hard drive light stay on?

Your hard drive light is on because it is plugged in and not recognized by the system. This could be due to a number of reasons, but we recommend contacting your computers manufacturer for further assistance.

How do I fix a slow hard drive reading?

This is a common problem with hard drives. The best way to fix this issue is to run the disk check utility in Windows.

What do you do when your hard drive stays on longer than usual?

When your hard drive stays on longer than usual, it is possible that the computer has overheated. If this happens, you should shut down the computer and allow it to cool off for a few minutes before turning it back on.

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