Hỏi đáp - Tháng Bảy 27, 2022

[Fixed] Hard Drive or C Drive Full for No Reason in Windows 10/8/7

[Fixed] Hard Drive or C Drive Full for No Reason in Windows 10/8/7

Is your hard drive full for no reason? Is C drive showing full but no files are there? Here are 8 solutions for you to solve the problem of a Windows 10/8/7 disk full but nothing on it. You can try them one by one to solve your problem perfectly.

Why Is My Hard Drive Full

Many users have confronted hard drive full for no reason or C drive full for no reason issue on Windows 10. When the hard drive is full, your computer may run slowly, and you can’t store new files or data.

Bài viết: Fix full disk

In this case, you might want to know: Why is my hard drive or C drive full without reason? The possible causes can be:

  • Too many applications or files saved on the disk.
  • There is not enough disk space.
  • File system corruption on the hard drive.
  • Much temporary and cached files.
  • Virus or malware attack.

So how to resolve hard drive full for no reason problem on Windows 10 or Windows 7? Let’s troubleshoot with the effective solutions in this tutorial.

8 Fixes for a Hard Drive Full But No Files Windows 10/8/7

The below part consists of all possible solutions to C drive full for no reason. They also can be applied to some relevant searches, for example, “hard disk full but no files”, “external hard drive full for no reason” and “C drive showing full but nothing on the computer”.

Fix 1. Empty Windows Recycle Bin

Don’t neglect the recycle bin, which holds quite a lot of abandoned files. A crowded recycle bin is accused of taking up some disk space until you empty it.

Step 1. Locate the recycle bin icon, right-click on it and choose “Open”.

Step 2. Press Ctrl + F1 to expand the ribbon of Recycle Bin Tools, and choose the first option, “Empty Recycle Bin”.

empty recycle bin to fix hard drive full problem

In my case, I cleared the recycle bin and spared about 13GB of disk space.

empty recycle bin to free up disk space

Fix 2. Verify the virus problem

The current used space is not in compliance with the actual size of existing files and folders, considering that something is stealing the disk space. First of all, you should suspect a virus or some malicious software you unknowingly installed from an email link or somewhere else. Run the anti-virus software on your computer, and start a thorough disk scan for all the suspicious programs. Once found any, uninstall and remove them all clean. For those who don’t have a virus protection program, Kaspersky and Malwarebytes are reliable and helpful.

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If you prefer using CMD to remove a virus from a hard drive or external storage drive, visit the linked page for a tutorial.

Fix 3. Check and repair disk errors, and Extend C Drive

When the hard drive’s file system gets corrupted, it will show the capacity incorrectly and cause the C drive is full for no reason problem. You can use a hard drive repair tool – EaseUS Partition Master to check and repair back sectors by fixing the file system errors with the Check File System feature.

Now, download this partition management software to check and repair a corrupted file system and fix the hard disk full but no files issue on Windows 10.

Check and Fix Disk Error:

Extend C drive:

If you encounter the C drive running out of disk space issue and shows full for no reason, you can try to use EaseUS Partition Master to help you easily increase C drive on Windows 10 for free.

Option 1. Extend System C drive with unallocated space

  1. 1. Right-click on the System C: drive and select “Resize/Move”.
  2. 2. Drag the system partition end into the unallocated space so to add it to the C: drive. And click “OK”.
  3. 3. Click “Execute Operation” and “Apply” to execute the operations and extend the C drive.

Option 2. Extend System C drive without unallocated space

  1. 1. Right-click a big partition with enough free space on the system disk, select “Allocate Space”.
  2. 2. Select the system drive at the Allocate Space From (*) To section, and drag the end of System C drive into the unallocated space. Click “OK” to confirm.
  3. 3. Click “Execute Operation”, it will list the pending operations, and click “Apply” to save the changes and extend the C drive.

0:00-0:32 Extend System Drive with Unallocated Space; 0:32-1:00 Extend System Drive without Unallocated Space.

Fix 4. Show hidden files & folders, clean up junk files and large files

For the case the hard drive showing full but no files were seen, you can try to unhide files and folders to determine whether hidden items occupy the disk space.

How to show hidden files/folders in Windows 10/8/7:

Step 1. Open “Control Panel” > “FileExplorer Options” > Click “View” tab > Check the box in front of “Show hidden files, folders and drives”.

Step 2. Return to the problematic drive and check how much the hidden items eat up disk space. If it’s necessary, delete the bloated ones.

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show hidden files and folders in windows 10, 8 and 7

In the process of using the system or software, there will be a lot of garbage files. You can use a free PC cleanup tool to safely clean out your junk files on the C drive and improve the computer performance.

Here is how to clean up system junk files on your hard drive:

Step 1. Download and install EaseUS Partition Master Suite on your PC. Click to download PC Cleaner on panel.

Step 2. Install EaseUS CleanGenius on your PC. To begin with, navigate to “Cleanup” and click “Scan.”

Step 3. EaseUS CleanGenius will start immediately to scan all the useless files, select system junk files and invalid entries, and click “Clean” over all your PC.

Step 4. Once completed, you can see clearly how many MBs or GBs of data are cleaned. Click “Done” to finish the process.

Fix 5. Delete temporary files

My C drive is full without reason. Are you one of the members going through the low disk space warning on a system drive? Then it’s time to raise attention to the temporary files, which usually refer to leftover files, such as Windows installation files, upgrade logs, browse caches, etc. Follow the steps below to clear temporary files to solve the hard drive full without reason issue.

Step 1. Go on typing %temp% in the Run box and hit Enter.

Step 2. Press Ctrl + A to select all and press Delete. Skip the one that is currently using.

delete temp folder


We presented Windows users with 8 useful methods to fix hard drive full for no reason problem in a nutshell. We hope you’ve seen a satisfying result after going through this page. Except there is a real hard disk problem that is draining the disk space abnormally, you should have requested the free space back, for a little or plenty.

Bonus Tips: How to Fix Hard Drive Full for No Reason on Mac

Just like Windows users, Mac users also meet the hard disk full issue. How to free up storage space on your Mac? Here are some useful tips:

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  • Store all files, photos, and messages in iCloud instead of the local disk
  • Use the Optimize Storage feature to save space automatically removing unwanted files
  • Empty Trash and remove unneeded files
  • Use the Reduce Clutter option to find and delete large files you no longer need
  • Move files to an external storage device
  • Manually delete application/browser caches and system junk
  • Remove iOS devices’ backups
  • Delete language packs


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