12 Ways to Fix Low Disk Space Error on Windows 10//8/7 [2020 New]

Daisy updated on Oct 13, 2020 to Partition Master | How-to Articles

List of Ways to Fix Low Disk Space in Windows 10/8/7:

If your PC is with low disk space error, you can't install a new Windows update, and the PC's performance may be affected. Here are some ways to fix this error for you to try:

Fix low disk space error

  1. 1. Extend Drive with Unallocated Space
  2. 2. Combine Low-space Drive with a Neighbour Drive
  3. 3. Extend Low-space Drive with Space on Another Drive
  4. 4. Allocate Partition Space to the Target Drive
  5. 5. Clean Junk Files 
  6. 6. Clean Large Files
  7. 7. Transfer Large Files to An External Hard Drive
  8. More details...

Sometimes, when you receive a "Low Disk Space" error pop-up, you might ignore the warning message or try to disable it for permanent. Indeed, modifying the registry value can stop the notification showing up again, but that's not the thing we talk about here. 

On this page, you'll learn what is "Low Disk Space" error, what will happen when your PC is with this issue, and how to get rid of this issue with over 10 fixes.

What Does "Low Disk Space" Mean?

"Low Disk Space" warning message usually pops up in Windows operating system when you boot up PC or open a computer hard drive.

There are two types of warning messages, each of them has different meanings:

Low disk space error

1. Low Disk Space - "You are running out of disk space on Local Disk (X:). Click here to see if you can free space on this drive."

When you get this error, it means that your local drive (X:) is running out of free space for saving data. 

2. Low Disk Space - "You're running out of space on this PC. Manage storage to view usage and free up some space." 

This error doesn't appear regularly. It is mainly related to the C:\ Windows\Temp folder. When the folder gets full, this error would appear on Windows startup.

When Windows prompts low disk space warning messages, you can hardly save new data, download apps, play games or install a recent Windows update. What's worse, PC performance may be affected. 

You can get rid of the constantly low disk space error from the following two aspects:

Part 1. Extend Disk Space to Fix Low Disk Space Error on Windows 10/8/7
Part 2. Free Up Disk Space to Remove Low Disk Space Error on Windows 10/8/7

Part 1. Fix Low Disk Space in Windows 10/8/7 by Extending Disk Space

Applies to: Fix low disk space error by extending disk space with available free space in Windows 10/8/7 hard drives.

Difficulty Level: Easy

Best For: All levels of users, beginners' best choice.

The quickest and most efficient way to get rid of low disk space error from Windows 10/8/7 is to add more space to the current drive. In other words, all you need is to extend the drive or partition which is running out of space, then the problem gets resolved.

Download: Partition Manager Software to Fix Low Disk Space Error

So how to add usable space to extend the low disk partition? Here, we introduce an all-round partition manager software named as EaseUS Partition Master to help you out. 

This is a handy third-party software that enables users to easily and safely extend/shrink a partition, format a partition, convert a file system, migrate Windows OS, clone a hard drive, etc. on Windows 10/8/7.

Download this software and follow tutorials listed below to extend disk partition and remove the low disk error from your computer immediately:

Download Now

 Windows 10 is supported

Fix Low Disk Space Error by Extending Partitions in 4 Methods

Now, you can apply EaseUS Partition Master to solve the 'low disk space' problem in Windows operating systems with any one of the following 4 ways:

  1. 1. Extend Drive Which Is With Low Free Disk Space
  2. 2. Combine the Low-space Drive with a Neighbour Drive
  3. 3. Extend Low-space Drive (Get Space from Another Drive)
  4. 4. Allocate Free Space from Other Partitions to the Target Drive

Method 1. Extend Drive Which Is With Low Disk Space

When a drive partition like system drive C or data partition D is filled with a red bar, it's having a low disk space issue. Check if there is unallocated free space available? If yes, you can directly extend the currently running low disk space drive as instructed below.

Follow the example here, you're going to learn how to extend a system C drive or a non-system drive with ease:


Step 1: Right-click on a partition next to the C: drive and select "Resize/Move".

Drag the end of the partition to shrink it, leaving unallocated space next to the system C: drive, and click "OK".
Now right-click on the System C: drive and select "Resize/Move".

extend System partition

Step 2: To add space to the C: drive, drag the system partition end into the unallocated space.

add space to c drive

Step 3: Click the "Execute Operation" button, it will list the pending operations.

Then click "Apply" to execute the changes and extend the C drive.

confirm to extend system C drive

Download Now

 Windows 10 is supported

Method 2. Combine the Low-space Drive with a Neighbour Drive

If there is no unallocated space, but you have an almost empty neighbor drive. You can try to merge two adjacent partitions into one to solve the low disk space on one drive to achieve the same effect.

For example, E drive is running out of space, and you're going to merge E and F into one to get rid of the low disk space warning.

Now, let EaseUS Partition Master helps you fix low disk space error by combining a neighbour drive to your target drive with the following steps: 


Step 1: Install and launch EaseUS Partition Master on your PC

Right-click on the partition which you want to add space to and keep on the hard drive, and select "Merge".

Run EaseUS partition manager software

Step 2: Select partitions to merge

1. Select one partition next to the former selected partition.
2. And click "OK" to continue.

Select partitions to merge

Step 3: Merge partitions

1. Click the "Execute Operation" button at the top and then click "Apply".
2. The program will merge space and add files from the second partition to the first partition.

Select partitions to merge

Note that you can also merge a non-adjacent partition to the target low disk space drive, refer to: Merge Non-adjacent Partitions in Windows 10. 

Method 3. Extend Low-space Drive (Get Space from Another Drive)

It's also possible for EaseUS Partition Master to get space from another drive so as to extend the current low disk space drive. To greatly ease the worry of users who don't see much free space on drive F, but drive G.

Let's see how to move space from other drives so as to extend the low disk space drive on your own:

Step 1. Locate the Target Partition

To start extending partition, you should first launch EaseUS Partition Master and locate the target partition which you would like to extend.

Step 2. Extend the Target Partition

1. Right-click on the target partition which you would like to extend and select "Resize/Move".

Select target partition to extend

2. Drag the partition panel rightward or leftward to add unallocated space into your current partition and click "OK" to confirm.

choose another drive to allocate space

3. If there is no or not enough unallocated space on your disk, use the advanced partition resizing function to directly allocate free space from other partitions to the target drive without deleting or formatting.

Find the "Allocate XX space from" option, then click "Select partition". Choose the partition from which you want to allocate space. Drag the partition panel rightward or leftward to resize the partition you want to extend. Then click "OK" to confirm.

choose another drive to allocate space

Step 3. Execute Operations to Extend Partition

Click the "Execute Operation" button and click "Apply" to keep all the changes. 

finish extending partition

Buggy software or a virus can destroy your system files, draining hard drive space. If you see a hard drive like C drive is filling up rapidly, it's an unusual factor of low disk space as described in the coming part. In this case, use an antivirus program to run a virus scan and cleanup. If this doesn't fix the problem, you might need to reset Windows to an earlier point/factory settings.

Method 4. Allocate Space from Other Partition to Low Disk Space Drive

Download Now

 Windows 10 is supported

Another cool feature that you can use in EaseUS Partition Master is its Allocate Space. It enables you to allocate free space from one drive or several drives to the target hard drive partition so to extend it.

With it, you can easily address the low disk issue on your own. Let's assume that you want to move free space on D: drive to C: drive, here are the steps:

Step 1. Right-click on the D partition with enough free space and select "Allocate Space" to allocate the free space to the C drive.

Select partition to allocate space

Step 2. Select the target partition that you need to extend, here, choose C drive. Drag the partition panel rightward to add space allocated from the source partition to the target one. Then click "OK" to confirm.

Allocate space to extend partition

Step 3. Click the "Execute Operation" button and click "Apply" to start the process of moving free space from D drive to C drive.

finish extending partition

Part 2. Free Up Hard Drive Space to Remove Low Disk Space Error

Apples to:Clean up disk temp files, free up hard drive space so to remove low disk space error on Windows 10/8/7.

Difficulty Level: Complex

Best For: Experienced Windows users

I hope that EaseUS Partition Master has released a considerable amount of disk space for at least a short-term use. It always works by extending partitions and drives.

If you need more basic operations to prevent future low disk space associated warnings, here are some tips that you can manage your computer hard drive in a logical and clean way.

8 Ways to Free Up Hard Drive Space, Get Rid of Low Disk Space on Windows:

  1. #1. Clean Junk Files to Free Up the System Drive Space
  2. #2. Clean Large Files
  3. #3. Transfer or Save Important Large Files to An External Hard Drive
  4. #4. Turn on Cloud Storage Service to Save Files
  5. #5. Transfer Programs from C Drive to Another Drive, Change Apps' Default Install Location
  6. #6. Empty Recycle Bin on a Regular Basis
  7. #7. Delete Duplicate Files and Temp Files
  8. #8. Run Anti-Virus Software to Clean Up Malware Regularly

Way 1. Clean Junk Files to Free Up the System Drive Space

Junk files include systems junk files (temporary files, Windows system logs...), and browser data, Windows applications data, and all the unknown and unuseful data that takes up space.

According to a Quora user, for average computer users who use a computer 8 hours a day, if you didn't do a junk files clean up like in a year, you'll free up around 15GB of space.

How to clean up the system drive junk files? Run EaseUS Tools M and clean junk files on system C drive by yourself. 

Step 1. DOWNLOAD and install EaseUS Tools M. Select "System Cleanup" on the main screen.

click system cleanup

Step 2. Select the type of junk files you want to scan and click "Analyze".

analyze junk files

Step 3. Identify and select useless files and click "Clean up" to remove those files from your PC or laptop.

click clean up to remove junk files

Way 2. Clean Large Files

It's easy for some professions, such as designers or photographers, to create extremely large files. A pile of 100MB~10GB documents, pictures, zip files, ebooks or movies are account for most of the low disk space problem on a computer.

You don't need to delete all the large files one by one. Using Large File Cleanup feature in EaseUS Tools M, it will completely scan your drive and return a result of files, with information of name, size, date created, and file location.

Then, you can choose which you will no longer use. Just delete the ones and free up some disk space.

Step 1. DOWNLOAD EaseUS Tools M for free and install it on your computer.

Step 2. Launch EaseUS ToolsM in Windows PC. Select "Large File Cleanup" on the main screen.

large file cleanup - 1

Step 3. Select the drive and click "Scan" to let the program locate, find all large files on your disk.

large file cleanup - 2

Step 4. Identify and select useless large files and click "Delete" to remove those files from your PC or laptop. A message tells you this process will permanently delete the files, click "Yes" to start the process.

large file cleanup - 3

Way 3. Transfer and Save Important Large Files to An External Hard Drive

Personal files such as videos, music, photos, and documents can take up a lot of disk space on your computer. They are important, and usually for long-term preservation. 

Important files like those are seldom for use, so it's a good idea to transfer those files to an external hard drive or USB flash drive:

Step 1. Connect a big empty micro SD card, USB, or external hard drive to your PC

Step 2. Locate and copy those files to your external storage device.

Step 3. When you complete the copy, delete them from your local computer.

To do so, it will reduce the heavy load of local hard drives.

Way 4. Turn on Cloud Storage Service to Save Files

Cloud is also a good place to save large files, to reduce the disk usage, at the same time, a very good backup location for your valuable data files. Let's see how to free up low-space disk capacity:

Step 1. Sign up for a Cloud drive like OneDrive, Dropbox, or Google Drive.

Step 2. Log in OneDrive, Dropbox, or Google Drive with your account.

Step 3. Select and upload important large files from your PC to the Cloud drive.

Step 4. After the uploading, delete the files saved on your local drive.

Way 5. Transfer Programs from C Drive to Another Drive, Change Apps' Default Install Location

C drive, as we know, is for system installation, and it's closely related to system performance.

Low C drive space would affect OS performance, making OS crash all the time. So, when installing programs, customize another location instead of choosing the default C drive.

As for the installed applications, you can transfer them to another local drive so as to free up the disk space. EaseUS Todo PCTrans with its App Migration feature can help you out.

Video Tutorial: Transfer Apps from C Drive to Other Partitions

Way 6. Empty Recycle Bin on a Regular Basis

The windows recycling bin is for holding deleted files and folders for the long term, if you need to recover deleted files someday after deletion. But the recycle bin folder with too many files there also takes up plenty of disk space.

Regularly cleaning up the recycle bin will help prevent the drive from filling up and running out of free space. You can manually empty the Recycle Bin on your own or set an automatic Recycle Bin clean up a plan with the following steps:

Step 1. Go to Settings > System > Storage.

Step 2. Click "Change how we free up space automatically", set a plan "Every day", "Every week", "Every month", etc. 

Clean up Recycle Bin automatically.

Way 7. Delete Duplicate Files and Temp Files

It's inevitable to produce duplicate files. Do not let many copies of the same file eats up your valuable hard drive space. 

To delete the temp files, you can manually delete them by going to: Windows File Explorer > C: > Windows folder > Temp folder and clear files in the folder.

Or you can set up an automatic temporary clean up plan:

Step 1. Go to Settings > System > Storage.

Step 2. Move to Temporary Files, set up a cleanup plan for 1 day, 14 days, 30 days, or more. 

Delete Temp files automatically.

Way 8. Run Anti-Virus Software to Clean Up Malware Regularly

As we know that, sometimes, malware or virus infection may also cause a situation that the system warns low disk error but the disk actually has enough free space.

To avoid this issue, we also suggest you run antivirus software to clear viruses and malware on your computer regularly.

The Bottom Line

On this page, we explained that is Low Disk Space error and what will happen if you have this error popping up on your computer.

To get rid of this issue, you have two options: one is to extend the disk which is having low disk space. And the other option is to free up disk space.

On helping you fixing low disk space error on Windows 10/8/7, we suggest beginners try EaseUS Partition Master with the listed 4 methods in Part 2 to directly extend a hard drive. It's easy and efficient.

For a daily regularly prevention, avoid the low disk space issue from popping up, we suggest you try the other 8 ways listed in Part 2 for help. Although complex but indeed helpful.

If you have further concerns, check the answers listed below, your doubts may get released.

People Also Ask About Low Disk Space

1. When and how often will I receive low disk space notification?

The less space that you have left on the drive, the more frequent you will receive the low disk space warning notification. In general, there are three degrees of warnings for the same error message. Refer to the following table.

Frequency How much free space left
Shows up once, for 10 seconds 200MB
Shows up every four hours, each for 30 seconds 80MB
Shows up every five minutes, each for 30 seconds  50MB

2. What do I do if hard drive says it's full but not?

Is your hard drive full for no reason? Is C drive showing full but no files are there? Here are 10 solutions for you to solve the problem of a Windows 10/8/7 disk full but nothing on it:

  1. 1. Verify virus and clean it
  2. 2. Check disk error
  3. 3. Show hidden files
  4. 4. Delete system restore
  5. 5. Remove drive letter
  6. 6. Clean junk files and large files
  7. 7. Delete temporary files
  8. 8. Delete unwanted Windows Update
  9. 9. Empty recycle bin
  10. 10. Replace a hard drive without reinstalling Windows

For a step-by-step guide, follow to fix it: Hard Drive Full But No Files in Windows 10/8/7. 

3. How do I fix low disk error on my Mac?

The low disk space error message on iMac generally occurs when the system files are not getting sufficient space to utilize the resources to the fullest in order to make the iMac work faster in a better manner.

Identifying and removing these files from the Mac is very tough and can be said is next to impossible. So, to get rid of this problem you need specialized software which should be efficient enough to deal with such a situation.

For a detailed guide, refer to Fix Low Disk Space on iMac for help. 

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

Video Tutorial

How to Partititon a Hard Drive on Windows 10/8/7