How to merge unallocated space in windows 10

While Diskpart is a powerful built-in tool for managing partitions, it comes with several limitations when used to merge unallocated space in Windows 10. The most notable drawback is that Diskpart only allows you to extend a partition into unallocated space that is directly adjacent and located to the right of the partition. If the unallocated space is on the left side of the target partition or separated by another volume, Diskpart cannot perform the merge, rendering it useless in many common disk configurations.

Another significant drawback is the lack of a graphical user interface (GUI). Diskpart is entirely command-line based, which can be intimidating or confusing for less experienced users when it comes to merging unallocated space in Windows 11/10. One typo can lead to the selection of the wrong disk or volume, which might cause data loss or corruption. Since there are no visual indicators, it's easy to misinterpret volume numbers or misidentify unallocated space, especially on systems with multiple drives or complex partition structures.