How to Merge Disk 0 and Disk 1 in Windows 11/10?

Guidelines on How to Merge Disks 0 and Disk 1 Quickly (UTF-8 Encoding)

You would need to do this in two steps to merge two disks:

Firstly, convert both disks to "Dynamic Disks". Secondly, use the Partition Master tool to merge the two disks.

How to merge disk 0 and disk 1 to extend the disk space?

"I have three disks on my computer. Disk 0 is almost full because I frequently use it to store and back up several terabytes of data. In contrast, Disk 1 has a lot of free space. I wonder if it's possible to merge Disk 0 and Disk 1 to get more space on Disk 0? Can I move the unallocated space on Disk 1 to Disk 0? Or how can I migrate the volume from Disk 1 to Disk 0?"

Most users may encounter the same issue: one disk is full while there is plenty of unallocated space on another disk. The best choice to make full use of all spaces is to merge two disks. Or move a volume from Disk 0 to Disk 1. On this page, we will show you how to easily and effectively combine Disk 0 and Disk 1 (only two disks). You can also use the methods on this page to merge more disks on Windows PC.

Preparations for Merging Disk 0 and Disk 1

To combine Disks 0 and 1, you would need to do the following preparation.

1. Download a reliable partition management software.

Professional Partition Manager Software - Partition Master tool helps you merge two disks effectively so that you can make the most out of your disk space. The software features:

• Directly transfer free space from one disk to another.
• Resize/move partitions, merge partitions, clone partitions, and check file system errors.
• Clone disks, convert to MBR/GPT, dynamic/basic, and even erase data.
• Migrate the operating system to an SSD without reinstalling to speed up Windows.

2. Ensure that there is sufficient unallocated space on the second disk.

As long as there is unallocated space on the second disk, you can add it to the target disk to extend the partition.

How to Merge Two Disks into One in Windows 11/10

There are two steps to combine two disks. **Firstly**, convert both disks to dynamic disks. **Secondly**, merge the two disks. Now, let's start to combine two disks in Windows 11/10:

Step One: Infuse the Basics with Dynamics

Click “Disk Converter,” and then select “Convert Basic to Dynamic.” Click “Convert” to proceed.

Confirm that the disk is converted from basic to dynamic.

4. In the same manner, select another disk (which must have at least 1 MB of free space at the end) and convert it to a dynamic disk.

After both disks have been converted to dynamic disks (as shown below), you can proceed to Step 2 to combine the free space from one disk with the other.

Step 2: Combine the two disks into one disk

NOTE: The other dynamic disk must be unallocated space. If not, delete all partitions on it using Partition Master. Also, you cannot merge the system partition even if you have converted it to a dynamic disk.

Select the whole disk, right click on it and choose “Resize/Move”.

Select the disk and adjust its size

Click and drag the partition panel to the right or left to extend the partition's size.

Sometimes, the unallocated space might be to the left of the partition that you want to extend. If you need to move the unallocated space, drag the left partition handle to the left until it is the size that you want.

Click Run 1 Task and Apply.

How to Merge Two Partitions on the Same Disk

If you have two adjacent partitions on the same disk, you can also use a partition tool to combine them. Unlike Disk Management, Partition Master doesn't require you to delete a volume to create new space. Instead, it directly merges the partitions as long as the source partition and target partition are adjacent ones.

Steps to merge two adjacent partitions on the same disk:

Step 1: Select the target partition

Right-click the partition you want to merge into the unallocated space, and select “Merge.”

Merge adjacent partitions

Merge with the partition adjacent to the previously selected one.

Select the partitions to merge

Click "OK" to continue.

Step 3: Perform the operations to merge partitions

1. Click the "Perform Tasks" button at the top of the page, then click "Apply." 2. The program will merge the two partitions and add the contents of the second partition to the first.

Conclusions

You can merge two adjacent partitions to extend C drive or other drives. You can also combine two disks by converting them to Dynamic Disk. Disk management tools play an essential role in managing disk space. You can turn to these tools whenever you encounter disk management issues.

"Frequently Asked Questions about Moving Unallocated Space from One Disk to Another"

We've provided some questions and answers for you. If you need further assistance, please feel free to continue reading.

What is the difference between "Disk 0" and "Disk 1"? In a computer, Disk 0 and Disk 1 generally refer to the drive numbers assigned to hard disk drives within the system. These numbers are used by the operating system to distinguish between different hard disks. Disk 0 is typically the first hard drive that the system recognizes by default, while Disk 1 is the second hard drive. The main difference between them lies in their position and order within the system. If a computer has two or more hard disks, the first one detected is labeled Disk 0, and subsequent disks are then labeled Disk 1, Disk 2, and so on. These numbers do not indicate performance differences; they are simply used to identify distinct physical storage devices.

Disk 1 and Disk 0 refer to two different physical disks. Disk 0 could be a 120 GB SSD, while Disk 1 might be a 1 TB HDD. This almost addresses your need for more storage space.

Are dynamic disks better than basic disks?

Dynamic disks are more flexible than basic disks because they don't use a partition table to track all of the partitions. Instead, they use a hidden Logical Disk Manager (LDM) or Virtual Disk Service (VDS) to keep track of information about the dynamic partitions or volumes on the disk.

How can I add the space from Disk 1 to Disk 0?

It's just two steps to merge two disks.

Step 1: Convert both disks to dynamic disks.

Step 2. Resize one of the partitions to make room for it.

Can you combine two SSDs?

Yes, you can use Partition Master to merge the SSDs if none of them is the system disk.