You may want your computer dual boot, but your MBR disk already has four primary partitions, which is hard to meet the requirement that the boot file of the operation system must on the primary partition so as to become the active partition, and your computer can boot from it. Now, in order to get the dual boot, you have to merge two primary partitions, and then create a new primary partition for the second system file only. Or you may just want to classify your files and store similar data on the same partitions, but the size of a single partition is not big enough to contain your precious photos, videos or something else, therefore, you need to merge two primary partitions. Or you may just need to resize C drive so as to solve problems caused by low disk space, besides merging a primary partition into partition C is another way.
In the situations above, none of them allows you to use Windows built-in Disk Management to merge two primary partitions directly, as the operation principle of Disk Management is to delete one and extend it into another, which will cause data loss. Besides, when there is a recovery between the two partitions, it’s impossible for Disk Management to merge the two uncontiguous partitions, so in order to achieve this job, you should delete the recovery and the primary partition behind. But considering these restrictions of Disk Management, I advise you choose a third-party software to help you solve these problems. Among all the partition freeware, AOMEI Partition Assistant Standard is a good choice.
How to merge two primary partitions?
AOMEI Partition Assistant Standard is accessible to all editions of Windows, both 32 bit and 64 bit. When you want to merge two primary partitions, no matter they are contiguous or not, AOMEI Partition Assistant Standard can solve your problem without data loss.
Situation1:merge two contiguous primary partitions
Step1: Download, install, and launch AOMEI Partition Assistant Standard. Right click the partition you need to merge (here is C:), and select “merge partition” in the drop-down menu.
Step 2: In the pop-up window, tick the partition (here is D, AOMEI Partition Assistant can only merge two contiguous primary partitions, and it will protect data from losing) and select the target partition C (the boot partition and system partition cannot be merged into a data partition, and in Windows 7 the “system reserved” cannot be merged). And then click “OK” to continue. In the case, all data in D drive will be transferred into drive C.
Step 3: You can preview changes in Pending Operations column on the left. To save the changes, please click "Apply" on the toolbar.
Situation 2: merge two uncontiguous primary partitions
When you want to merge two uncontiguous primary partitions, for example, merge two partitions with recovery between, you just need to delete one and make it unallocated. Then you can use AOMEI Partition Assistant Standard merge it into the other primary partition. Here, one thing you should notice is that before you delete the partition, you should backup the data on it, and I recommend you AOMEI Backupper to do this job.
AOMEI Partition Assistant Standard is a free and professional partition software with so many functions, such as disk\partition copy, partition recovery wizard, and NTFS to FAT32converter. You can easily solve all your partition problems by using AOMEI Partition Assistant Standard.