All disk partitions are allocated when installing Operating System, but sometimes you need to merge two partitions. For example: C drive is running out of space, you may consider merging another volume to increase its free space. If there are too many volumes created, you may also combine partitions together.
To combine two continuous partitions, one of the choices is Windows native Disk Management. However, only when your disk partition configuration meet the requirements, yon can merge 2 partitions without software. For example: there are drives C, D, E and F in the same disk, if drive D and E are both Primary or Logical partition, you can combine drive E to D by following the steps:
Shortages of Disk Management to combine partitions:
To combine contiguous partitions without these limitations, follow the steps in the video. This article introduces how to merge non contiguous partitions in Windows Server and PC.
To merge two non-adjacent volumes, for example: combine C and E drive, or merge D and F drives, Disk Management cannot help you, because Extend Volume can only combine Unallocated space to the left adjacent partition.
In this situation, you need 3rd party partition software. Among these tools, NIUBI Partition Editor provides unique 1 Second Rollback, Virtual Mode and Cancel-at-well technologies to protect system and data, it is also much faster because of the advanced file-moving algorithm.
Steps to merge non adjacent partitions in Windows 10/8/7 and Server 2019/2016/2012/2008/2003:
It is easy to merge non adjacent partitions with NIUBI Partition Editor, however, you'll lose a partition after merging. If it isn't an issue, of course you can do like this. But, if you don't want to transfer files or want to keep this partition, you'd better resize partitions instead of merging.
For example: if you want to extend C drive, you may either shrink the adjacent drive D or the non-adjacent partition E to get Unallocated space, and then add Unallocated space to C drive. By this way, everything keeps the same with before except partition size. Watch the video how to do this:
Besides merging, shrinking and extending partitions, NIUBI Partition Editor helps do many other disk partition management operations. To Windows 10/8/7/Vista/XP home computers, there's free edition (100 clean without any bundles).