How to Merge Partitions without Losing Data in Windows 7/10?

Why need to merge partitions in Windows 7/10?

Generally speaking, some partitions' space in the disk cannot meet our needs. For example, C: becomes smaller, while D: has a lot of redundant space. In this case, we may want to make full use of the space on D:. As we all know, the Disk Management in Windows doesn't permit us to merge two volumes. Although Windows 7/8/Vista has the option "Extend Volume", it goes grayed out when the unallocated space isn't directly behind the volume.

Here, I would like to show the example -- merge C and D drive in Windows 10 using AOMEI Partition Assistant Certainly, if there is an unallocated space in the disk, it's ok to merge the unallocated space into any existing partition.

How to merge partitions via professional tool?

Before all the following procedures, please pay attention to some important points below:

  1. It supports two volumes to merge at most, and they must be adjacent.
  2. It's available to merge data volume to system volume, but cannot merge system to data volume.
  3. It is accessible to merge unallocated space in a disk no matter where it is.
  4. The "system reserved" volume in Windows 7 or Windows 10 couldn't be merged.

Situation 1: No unallocated space in the disk.

Step 1: Download AOMEI Partition Assistant Pro Edition and launch. Right click C: to select "Merge Partitions".

Step 2: Tick D: in the pop-up window and click "OK".

merge c and d.gif

Step 3: Click "Apply" to commit the task.

Situation 2: Exist unallocated space but not behind C:.

Step 1: Right click C: to choose "Merge Partitions".

Step 2: Tick the unallocated space and select "OK". Actually, we can also tick D: together based on our own choice.

Merge Space

Step 3: Remember to click "Apply" to take effect the change.

From the procedures above, we can see how convenient it is to merge volumes in Windows 7 or Windows 10 without losing data. During the process, all the data will be protected, and just three steps needed and merging partitions can be done. What's more, there is no need to restart the computer.

In a word, trying this method will save a lot of time for us. With its help, we don’t have to format volumes, and then reinstall the system to repartition the disk. Apart from this feature, it also provides resize/move/split/copy partition, allocate free space, etc. All the features will give you a big hand in Windows XP/Vista/7/8(32bit and 64bit). Download it and have a try now.