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Hard Drive Full for No Reason Windows 10/8/7

Updated on Jul 19, 2018 by Jean to Partition Manager

Hard drive full for no reason or C drive full without reason? Here are 4 solutions to help solve the problem of hard drive full but it is not in Windows 10, 8 and 7. You can try them one by one until the issue has been resolved perfectly.

Overview of hard drive full for no reason

Why does hard drive show full when there are no files taking up space literally? The truth is that many users are experiencing the 'full' issue at the moment. Let's see an example.

My Windows 10 c drive is full without reason

"Every so often I get a message that says 'you have 0MB free on drive c'. Then it asks me to run a disk cleanup, but I worried that disk cleanup would erase system files that are necessary for Windows. So, would you kindly give some suggestions to fix hard drive full but it is not without losing important files?"

4 Solutions to fix hard drive full but is not in Windows 10/8/7

We provide 4 solutions here to help solve the problem of hard drive full but it is not in Windows 10, 8 and 7. You can try them one by one until the issue has been resolved perfectly. By the way, the solutions can be applied to some specific searches, including hard disk full but no files, external hard drive says it's full but it's not, my hard drive is full but I don't know why, c drive showing full but nothing on the computer, etc.

Solution 1. Safe cleanup of junk files and large files

Instead of teaching you how to use Disk Cleanup to delete unwanted files and temporary internet files in order to free up some space, it's easier to start out by using a third-party free partition manager software, because all Windows versions are doing the same with it.

How to clean up junk files in Windows 10/8/7?

Step 1. Download EaseUS Partition Master Free. Launch it after the successful installation.

Download Now

 Windows 10 is supported

Step 2. Click the Cleanup and Optimization.

cleanup and optimization in EaseUS Partition Master

Step 3. Now you have 3 options to go: Junk File Cleanup, Large File Cleanup and Disk Optimization. Let's start from the first one.

3 options to go, including junk files cleanup, large files cleanup and disk optimization

Step 4. Junk File Cleanup allows you to remove system junk files, junk files generated by browsers, Windows built-in applications and other applications. Click Analyze and get ready to Clean up.

junk files cleanup with EaseUS Partition Master

A thorough cleanup of junk files that was usually invisible would help us greatly reduce the likelihood of low disk space on hard drive, and rectify the problem when hard drive shows full but it's really not.

How to clean up extreme large files in Windows 10/8/7?

Next, you can proceed with large files cleanup, especially some uninstalled program files and zip compressed folders that taking up a considerable amount of disk space.

Step 1. This time select the middle option called Large File Cleanup.

Step 2. You'll be asked to select the disk to scan. So, choose the hard drive that is showing to full and click Scan.

select hard drive that is showing full and click scan

Step 3. All large files will be found and displayed. Now, you should decide which ones are garbage and won't be used in the future. Click Delete.

select large files and click delete

Solution 2. Show hidden files & folders

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

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

Open Control Panel -> File Explorer Options -> Click View tab -> Check the box in front of Show hidden files, folders and drives.

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

Solution 3. Add extra space to drive C

Are there hidden items that eating up the disk space without your notice? If yes, to fix hard disk full issue without losing data, use EaseUS Partition Master Free again to extend c drive that is filling up for no reason.

Guide: how to increase c drive space or extend c drive?

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 Windows 10 is supported

Solution 4. Temporarily disable System Restore

Here is the last resort you can rely on, which is to temporarily disable System Restore function in Windows computer. You'd amazed at how much space has saved from disabling System Restore in a Windows computer.

How to disable System Restore in Windows 10/8/7?

Open Control Panel -> System -> System Protection -> click the Configure under Protection Settings -> Select the option Disable sytem protection.

disable system restore in windows 10,8 and7