How to Use Unallocated Space on SSD Windows 10: 7 Effective Methods

Discover effective methods to utilize unallocated space on your SSD in Windows 10. Reclaim storage and optimize system performance with these step-by-step solutions.

Nene Aly

By Nene Aly / Updated on March 12, 2024

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Unallocated space on your SSD in Windows 10 can be a wasted resource. In this article, we will explore seven effective methods to make use of this unassigned space and optimize your system's performance. But before we dive into the solutions, let's understand what this problem is all about and the common reasons behind it.

Unallocated Space In Disk Managment

Understanding the Problem

The issue of unallocated space on SSDs in Windows 10 arises when certain disk partitions or volumes are left unused or unassigned. This can occur due to various reasons, such as:

  • Incorrect disk initialization
  • Incomplete or failed disk partitioning
  • Accidental deletion of partitions
  • Unsuccessful disk cloning or imaging
  • Corrupted partition table

Now that we have identified the problem, let's dive into the solutions and methods to resolve it.

Method 1: Using Disk Management

Step 1: Launch the Disk Management tool by pressing Win + X and selecting Disk Management.

Step 2: Locate the unallocated space in the Disk Management window.

Step 3: Right-click on the unallocated space and select New Simple Volume.

Step 4: Follow the on-screen instructions to set up the new volume and assign a drive letter.

This method is effective for cases where the unallocated space exists on the drive but is not assigned properly.

Method 2: Using DiskPart Command

Step 1: Open the Command Prompt as an administrator.

Step 2: Type diskpart and press Enter to launch the DiskPart utility.

Step 3: Type list disk and press Enter to view all available disks.

Step 4: Type select disk X (replace X with the disk number containing the unallocated space).

Step 5: Type create partition primary and press Enter to create a primary partition.

Step 6: Type format fs=ntfs quick and press Enter to format the partition as NTFS.

Step 7: Assign a drive letter to the partition using the assign letter=X command (replace X with the desired letter).

This method allows you to manually create a new partition and utilize the unallocated space.

Method 3: Using Third-Party Partitioning Tools

Step 1: Download and install a reliable third-party partitioning tool like AOMEI Partition Assitant. 

Step 2: Launch the partitioning tool and select the disk containing unallocated space.

Step 3: Use the tool's interface to create a new partition from the unallocated space.

Step 4: Follow the provided instructions to format the partition and assign a drive letter.

Third-party partitioning tools offer comprehensive features and a user-friendly interface for disk management.

Method 4: Extending an Existing Partition

Step 1: Open Disk Management by pressing Win + X and selecting Disk Management.

Step 2: Right-click on the partition adjacent to the unallocated space and select Extend Volume.

Step 3: Follow the on-screen instructions to extend the partition into the unallocated space.

This method is applicable when you want to extend an existing partition to utilize the adjacent unallocated space.

Method 5: Migrating OS to SSD

Step 1: Use a disk cloning tool like Macrium Reflect to clone your operating system onto the SSD.

Step 2: Shut down your computer and disconnect the old HDD, leaving only the SSD connected.

Step 3: Boot up your computer and ensure that the OS is running smoothly on the SSD.

This method is useful when you want to migrate your entire operating system to the SSD, utilizing the full capacity of the drive.

Method 6: Reinstalling Windows on SSD

Step 1: Create a Windows 10 installation media using the Media Creation Tool.

Step 2: Connect the SSD to your computer and boot from the installation media.

Step 3: Follow the on-screen instructions to install Windows 10 on the SSD.

This method involves a fresh installation of Windows 10 on the SSD, allowing full utilization of the drive's capacity.

Method 7: MyRecover for File Recovery

MyRecover is a reliable file recovery software that can recover deleted or lost files on Windows. Here's how to use it:

Step 1: Download and install MyRecover on your Windows computer.

Step 2: Launch the software and select the desired drive or location for file recovery.

Step 3: Initiate the scanning process to search for deleted or lost files.

Step 4: Once the scanning is complete, preview and select the files you wish to recover.

Step 5: Click on the Recover button to restore the selected files to your desired location.

MyRecover is a user-friendly and efficient tool for recovering accidentally deleted or lost files on Windows.

Frequently Asked Questions

Q: How can I recover deleted files from unallocated space?

A: You can use data recovery software like MyRecover to scan the unallocated space and retrieve the deleted files.

Q: Does unallocated space on an SSD affect system performance?

A: Unallocated space does not directly impact system performance but utilizing it can optimize storage allocation and overall system efficiency.

Q: Is it safe to use third-party partitioning tools?

A: Yes, reputable third-party partitioning tools are safe to use and provide additional functionality beyond the built-in Windows tools.

Q: Can I delete the recovery partition to utilize unallocated space?

A: It is generally not recommended to delete the recovery partition, as it contains important system recovery files. Instead, consider other methods listed in this article to utilize unallocated space.

Q: How can I check if my SSD has unallocated space?

A: Open Disk Management in Windows 10 and look for any unallocated space indicated in the disk layout.

Q: Can I merge multiple unallocated spaces on my SSD?

A: Yes, you can use third-party partitioning tools like MiniTool Partition Wizard to merge multiple unallocated spaces into a single partition.

This comprehensive article has explored several methods to use unallocated space on your SSD in Windows 10. By following the step-by-step solutions provided, you can optimize your storage allocation and improve system performance. Take advantage of the available methods and get the most out of your SSD's potential today!


In conclusion, this article has addressed the issue of unallocated space on SSDs in Windows 10 and provided seven effective methods to utilize and optimize this space. Whether it's using built-in tools like Disk Management or leveraging third-party partitioning software, you now have the knowledge to make the most of your unallocated space. Additionally, we introduced MyRecover, a reliable file recovery software, and explained how to recover deleted or lost files after resolving the unallocated space problem. Follow the steps provided and unlock the full potential of your SSD in Windows 10.

Nene Aly
Nene Aly · Editor