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How to Solve C Drive Is Full and Out of Space in Windows 10/8/7

Updated on Apr 19, 2019 by Jean to Partition Master

My C drive is full, how to fix? Here are full C drive full Windows 10/8/7 solutions. Try it to fix the issue when your computer prompts low disk space warning because C drive is full and out of disk space.

Overview of C drive full issue

If C drive is full, what will happen

If your computer reports that the C drive is out of space, or your primary hard drive is full or out of space, you're likely encountering one or more of the situations listed below:

  • The hard disk drive is not big enough to accommodate all your needs, such as software update/upgrade, program installation
  • Windows operating system is running slowly
  • Low storage space for storing more data/files

Symptoms for "C drive is full and out of space" in Windows 10/7/XP

Windows pops up the low disk space warning to alert computer users when their C drive is out of space. Different Windows OS will show different symptoms when C drive is running out of space. Here, the following we'll show you two symptoms on Windows XP, Windows 7 and Windows 10:

  • Windows XP displays the Low Disk Space warning as "You are running out of disk space on Local Disk (C:). To free space on this drive by deleting old or unnecessary files, click here."

Windows XP c drive is out of space

  • If C drive is full in Windows 10 or Windows 7, it will be shown in red as below:

Windows 7 c drive is out of space

Three fixes for "c drive is full" in Windows 10/8/7/XP

If you are facing the C drive full or low disk space issue, and you're trying to solve this problem, here we'll introduce you three methods.

Method 1: Free up hard disk space by deleting temporary files

In Windows 10:

Step 1: Press "Windows + I" to open the "Settings" app.

Step 2: Click on "System" > "Storage".

Step 3: Under "Storage" select the drive you want to analyze. (Note that the "This PC" drive is the main computer's hard drive where Windows 10 is installed.)

Step 4: On Storage usage, you can see that Windows 10 categorizes the content based on default folders (e.g., Documents, Pictures, Music, etc.), apps and games, and system files, and you can view the storage usage. Simply click on of the item's name to get more information.

Step 5: If you want to delete its content, click the view button to open the folder location, and delete the files you don't need.

Step 6: Go back to Storage usage and click on "Temporary files". In this section, Windows 10 will list different kind of temporary files you may want to delete, including "Temporary files", "Downloads folder", "Recycle bin", and more. Click on the button of the content you want to remove and follow the instructions to delete the files.

Step 7: Go back to Storage usage and now click "Other". Windows 10 uses this section to list all the folder that couldn't be categorized. Identify which folders are using the most storage space and click on them to access the location.

Step 8: Select its content, right-click, and select "Delete" to remove the files and folders.

In Windows 7:

Step 1: Right-click one of your hard drives in the Computer window and select "Properties".

Step 2: Click the "Disk Cleanup" button in the disk properties window.

Step 3: Select the types of files you want to delete and click "OK". This includes temporary files, log files, files in your recycle bin, and other unimportant files.

Method 2: Add a larger hard disk

If you find your C drive is out of space frequently or the method above doesn't help you resolve your issue, it may be necessary to upgrade or add another hard disk to your computer.

Add another hard disk:

If you have a decent sized hard drive (larger than 100GB for more recent computers) but are running out of space, adding a new hard disk will give you additional storage without having to erase the existing hard drive. This could be either an internal or external hard disk.

Replace the current hard drive:

If your hard disk is less than 100GB, you may want to consider replacing the current hard disk with a new hard disk. Unfortunately, if you do decide to do this, you will need to reinstall the operating system and all the programs again.

Upgrade current hard drive to a larger hard drive:

If your hard disk is less than 100GB, you may want to consider upgrading the current hard disk to a larger hard disk, "Disk Copy" feature of EaseUS Partition Master has the ability to do it without reinstalling operating system and applications. Detailed steps: How to upgrade to a larger disk by copying disk?

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 Windows 10 is supported

Method 3: Extend c drive using third-party partition software

Trying a partition manager software tool is an easy and efficient way to solve the issue "c drive is out of space". You can extend C drive as you wish and don't need to worry about data loss. EaseUS Partition Master can help you do it with ease.

EaseUS Partition Master is a comprehensive hard disk partition management software to let you enjoy all its powerful functions, such as merging partitions and converting MBR to GPT. Now, follow the steps below to extend your C drive with simple clicks.

Step 1: Launch EaseUS Partition Master

Run EaseUS Partition Master

Step 2: Add space to the System C drive

1. Shrink partition and leave unallocated space for extending C: drive:

  1. Right-click on a partition next to the C: drive and select "Resize/Move".
  2. Drag the end of the partition that is next to the C: drive and shrink it, leaving unallocated space next to the system C: drive, and click "OK".

2. Right-click on the System C: drive and select "Resize/Move".

Extend System partition

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

Add space to C drive

Step 3: Confirm to extend system C drive

Click the "Execute Operation" button, it will list the pending operations, and click "Apply" to execute the changes and extend the C drive.

Confirm to extend system C drive

With this tool, you can manage your disks or partitions safely and effectively. Don't hesitate to give it a try.