How to Merge Partitions in Windows 7 (32 and 64 bit)

Jean updated on Aug 16, 2019 to Partition Master | How-to Articles

Why Need to Merge Partitions

  • C drive is too small and getting full, need to merge C with D for a larger system partition.
  • There are too many drives causing it difficult to locate the partition and files.
  • Merge partitions for more free drive space.

In this page, we would like to introduce you two ways to merge partitions in Windows 7: combine partitions with Disk Management Tool and merge partitions with EaseUS Partition Master.

How to Merge Partitions in Windows 7 with Disk Management Tool

Windows 7 Disk Management doesn't provide the "Merge Volume" feature directly, but you can merge partitions by deleting and extending. Now, let's take merging C and D partitions as an example. If you want to combine other partitions, it works the same way.

Before you start merging partitions, read the following notes carefully.

  • Drive C and Drive D should be adjacent. 
  • Both partitions should be formatted with NTFS because Extend Volume does not support FAT32 partition. If one of them is with FAT32, convert FAT to NTFS at first.
  • Deleting the volume will erase all data on it. You should make sure you have backed up anything crucial on that volume in advance. 

1. Right-click "Computer" on your Windows 7, choose "Manage" and click "Disk Management' to get its main interface. 

2. Right-click partition D and then choose "Delete Volume" button to release unallocated space. 

merge partitions - delete volume

3. Right-click partition C and then choose "Extend Volume" button. Then, extend volume C by following the Extend Volume Wizard. 

merge partitions - delete volume

However, many restrictions cause you cannot merge partitions. If you meet the problem that cannot extend volume or Extend Volume greyed out in Windows 7, fix it with the online tutorials. After troubleshooting, If you still can't merge partitions, or if you don't want to risk any data loss caused by removing a partition, you can use a professional partition manager to merge partitions more easily and safely.

How to Merge Partitions in Windows 7 with EaseUS Partition Master

As mentioned above, Windows 7 built-in Disk Managemen tool requires you to delete the partition when you merge partitions with it. So, this method is not most recommended.

Here, EaseUS partition software comes to help you merge partitions in Windows 7 without data loss. With this tool, you can directly merge two adjacent partitions without removing. And it also provides clone wizard to back up the partitions you want to manage in a safe place to avoid any unexpected data loss.

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 Windows 10 is supported


Step 1: Install and launch EaseUS Partition Master on your PC

Right-click on the partition which you want to add space to and keep on the hard drive, and select "Merge".

Run EaseUS partition manager software

Step 2: Select partitions to merge

1. Select one partition next to the former selected partition.
2. And click "OK" to continue.

Select partitions to merge

Step 3: Merge partitions

1. Click the "Execute Operation" button at the top and then click "Apply".
2. The program will merge space and add files from the second partition to the first partition.

Select partitions to merge

Extend C Drive by Resizing Partition Instead of Merging

System partition and boot partition can only be set as the destination. C drive is where the Operating System located; it cannot be deleted. When merging drive C and D, all files in drive D will be moved to drive C, and then drive D will be deleted.

However, different from other data volumes, programs are installed in drive D, so it is not a good idea to extend C drive by merging D. On this occasion, you can use EaseUS Partition Master to extend C drive by resizing D drive instead of merging. You can shrink drive D to release more free space and then add into C drive. In this way, you don't need to delete drive D, and everything keeps the same. 


Step 1: Launch EaseUS Partition Master

Run EaseUS Partition Master

Step 2: Increase C drive space

1. Shrink partition to free up unallocated space:

Right-click on a partition next to the C: drive and select "Resize/Move".
Drag either end of the partition to shrink and leave unallocated space behind the system C: drive and click "OK".

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

Extend System partition

3. Drag the system partition end into unallocated space so to add space to C: drive.

Add space to C drive

Step 3: Keep all changes to extend C: drive

Click the "Execute Operation" and click "Apply" to keep all changes so to extend the system C: drive.

Confirm to extend system C drive

Comparisons Between Disk Management and EaseUS Partition Master

Disk Management is a useful tool for you to partition a hard drive, format a hard drive, change a drive letter, or perform various other disk-related tasks. It has both advantages and disadvantages. Here is a detailed comparison table that tells you the main features of the Windows 7 Disk Management Tool and EaseUS partition software. Read it and choose the one that fits your needs best. 

Features EaseUS Partition Master Windows 7 Disk Management
Merge, delete, move, hide, label, check partition ×
Copy dynamic volume, copy disk/partition ×
Extend NTFS system partition without reboot
Create, delete, format, change the drive letter, set active
Extend/shrink FAT ×
Extend/shrink NTFS
Partition Recovery, partition scheme ×
Create Bootable Disks ×
GPT disk

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.