What is the best disk management tool for windows 11 or windows 10

The Windows 11 Settings app offers a newer graphical interface for basic partition operations (Settings → System → Storage → Disks & Volumes), but it has the same fundamental limitations as Disk Management — it cannot merge partitions without data loss or move partition locations.

If you are determined to use only what Microsoft provides with Windows if you are looking for a Windows 11 disk management, here is the complete workflow:

1. Back up all data from the partition you want to merge (e.g., D: drive) to an external drive

2. Open Disk Management (diskmgmt. msc)

3. Delete that partition (right-click → Delete Volume) — this erases all data on it

4. Extend your target partition into the newly created unallocated space (right-click → Extend Volume)

5. Restore your backup to the extended partition

This method uses only built-in Windows tools, is completely free, and is not third-party. However, it requires:

External storage for backup

Time to back up and restore

Accepting that you cannot merge partitions "without data loss" — you are simply deleting data and restoring it afterward