How to Fix Steam Not Enough Disk Space Error on Windows 11/10

Steam may display a “Not Enough Disk Space” error even when your drive appears to have plenty of free storage.

This issue is usually caused by:

• Corrupted Steam download cache
• Temporary installation files
• Steam library folder errors
• File system corruption
• Write permission issues
• Antivirus interference

In most cases, clearing the Steam download cache or repairing the Steam library folder resolves the error.

Here are some quick fixes for Steam not enough disk space.

Why Does Steam Say Not Enough Disk Space?

Steam may require more storage than the game’s final installed size.

During installation or updates, Steam creates:

• Download packages
• Temporary extraction files
• Patch files
• Verification files

As a result, a game update that eventually occupies 50GB may temporarily require 80GB–100GB of available storage.

This is one of the most common reasons users encounter the error despite having free space.

Here are some other most common causes:

• Corrupted download cache: Steam cache corruption can prevent Steam from calculating available storage correctly.
• Damaged Steam library folder: Library folder configuration issues may stop Steam from accessing available disk space.
• Insufficient temporary space: Large games and updates often require more storage space during installation.
• File system limitation: If you install the game on a FAT32-formatted drive and the game contains files larger than 4GB, you’ll receive an insufficient space error.
• Permission problems: Steam may not have sufficient write permissions.

Fix 1. Restart Steam and Your PC

Steam may incorrectly report available storage because of:

• cached storage information
• incomplete downloads
• background processes

Simply restarting Steam and your computer refreshes disk usage detection.

Fix 2. Clear the Steam Download Cache

Steam stores temporary downloads and update files. Over time, these files may:

• occupy storage
• trigger installation conflicts
• cause incorrect space calculations

So, you need to clear the download cache. Here is the guide:

1. Open Steam. Then click Steam in the top-left corner of the window.
2. Select Settings and click on Downloads.
3. Scroll to the bottom of the Downloads section and click Clear Download Cache.
4. Read the warning, then click Confirm.
5. Steam will restart, and you will be prompted to log back into your account.

After logging in to your Steam account, try downloading or installing the game again and see if that works.

Fix 3. Run as Administrator

Running Steam as an administrator gives it full permissions to access the files and directories it needs.

This can help prevent “Steam not enough disk space” errors caused by insufficient permissions.

1. Right-click on the Steam icon on your desktop.
2. Select Properties from the menu.
3. Go to the Compatibility tab. Then, check the box for Run this program as an administrator.
4. Apply the setting.

Once setup is complete, Steam will run as Administrator every time you open it. Next, you can check if the Steam not enough free disk space issue still occurs.

Additionally, when Steam downloads, updates, or installs games, it needs to write data to the hard drive.

If the permissions for Steam or its game folders are set to “Read-only,” the system will block these write operations, resulting in “Disk Write Error” or “Insufficient Disk Space” errors.

To resolve this issue, you need to uncheck the “Read-only” attribute for the hard drive or folder where Steam is installed.

Fix 4. Verify Integrity of Game Files

This solution is particularly effective if:

• only one game triggers the error
• updates fail repeatedly
• game files became corrupted

Steam will automatically replace damaged files. Here are the steps to verify the integrity of the game files:

1. Launch the Steam client and click on Library.
2. Right-click a specific game and select Properties.
3. In the Properties window, click the Installed Files tab from the left-hand menu.
4. Click the Verify integrity of game files button.

Fix 5. Free up Disk Space

Freeing up disk space is a simple and common fix for the Steam low disk space error. You can try the following methods to free up disk space.

• Delete unnecessary files
• Uninstall old games
• Clear the downloading folder

Method 1: Delete Unnecessary Files

The Space Analyzer is a utility included with MiniTool Partition Wizard. It helps you scan your hard drives and gain a better understanding of their disk space usage.

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Step 1: Launch MiniTool Partition Wizard to get its main interface.

Step 2: Select the Space Analyzer feature on the toolbar.

Step 3: Select the drive where your Steam installation is and click Scan.

Step 4: After the scan, unfold the tree structure to find large or unnecessary files.

Step 5: Select the items you don’t need and choose Delete (Permanently).

Method 2: Uninstall Old Games

Step 1: Open Steam and go to your Library.

Step 2: Find the game you want to uninstall and right-click the game’s title to choose Uninstall.

Step 3: Click Uninstall again on the pop-up confirmation screen to begin the process.

After deleting some games that you no longer need, the storage space occupied by Steam will be freed up to a certain extent.

Method 3: Clear the Downloading Folder

When downloading or updating games using Steam, all temporary download files are stored in the Steam\steamapps\downloading folder.

When a download is interrupted, fails, or paused, some unfinished files may remain in this folder. Over time, these files can accumulate to several gigabytes or even tens of gigabytes of hard drive space.

Deleting the contents of this folder can free up disk space and resolve conflicts or errors encountered when updating or installing games on Steam.

Fix 6. Move Steam to Another Drive

If your drive is almost full and you don’t want to delete any data, you can choose to move Steam to another drive.

Fix 7. Check for Leftover Files

While Steam’s uninstall function typically deletes most game files, some files and folders may be left behind. If these folders accumulate, they can unnecessarily take up hard drive space.

You’ll need to navigate to your Steam library folder, find the steamapps directory, and then navigate to the common folder.

This common folder contains folders for all your installed games. Find the folders for the game you just uninstalled and delete them.

Fix 8. Extend the Partition Where Steam Is Installed

When should you extend the partition? If:

• SSD frequently runs out of space
• You install large AAA games
• Free space remains below 15%

Then, expanding the partition is a long-term solution.

MiniTool Partition Wizard provides the Extend Partition and Move/Resize Partition functions, which can help you effectively expand disk partitions and release more available space.

How to Extend a Partition

When there is no unallocated space adjacent to the target partition, you can use this feature to solve the issue.

It allows you to allocate free space from other partitions or unallocated areas on the same disk to expand the capacity of the specified partition.

Step 1: Open MiniTool Partition Wizard to enter its main interface.

Step 2: Right-click the drive where you installed Steam and click the Extend option.

Step 3: Click the down arrow from Take Free Space From and choose a partition, and click OK to save changes.

• Open the Take Free Space from the drop-down menu and select a partition or unallocated space.
• Move the blue slider to decide the amount of space to take.
• Hit the OK button.

Step 4: Tap on Apply > Yes to execute the operation. Once finished, the result will be displayed as follows.

How to Move/Resize a Partition

You can only expand the partition where Steam resides if there is unallocated space next to the target partition.

Step 1: Run MiniTool Partition Wizard to its main interface and right-click the partition, and select Move/resize.

Step 2: Drag the arrow lengthen the handle to occupy the unallocated space adjacent to the partition to occupy the unallocated space and click OK.

Step 3: Click Apply to perform the partition extension operation.

Once the installation of Steam’s disk expansion is complete, you can check again to see if you still receive a similar error.

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Not Enough Free Disk Space Steam FAQ

Bottom Line

The Steam not enough disk space error is usually caused by insufficient free space, corrupted cache files, damaged game files, Steam library issues, or partition limitations.

In many cases, clearing the download cache, removing temporary files, or verifying game files is enough to resolve the problem.

If your gaming drive is consistently running out of storage, extending the partition with MiniTool Partition Wizard can provide a long-term solution and improve your gaming experience.

If you have any questions or suggestions while using MiniTool Partition Wizard, you can contact us at [email protected] for further assistance.