How to merge two partitions of external hard disk on Windows 10/11?

HenryRobinson 

Converting to dynamic disk is another method that can be used to merge two partitions on an external hard disk. By converting the hard disk to dynamic disk, you can combine multiple partitions into one "volume", thus achieving an effect similar to merging partitions. However, this method has certain risks, especially when operating on an external hard disk, it is easy to have compatibility issues.

The steps are generally as follows:

1. Open the "Disk Management" tool, right-click the hard disk, and select "Convert to Dynamic Disk".
2. After the conversion, right-click the partition you want to expand and select "Extend Volume".
3. The system will allow you to merge the free partition space into this volume.

Although you can merge two partitions of external hard disk, please note that dynamic disks may have compatibility issues on some systems, especially when you connect the hard disk to other computers.

In addition, improper operation may cause data loss, so this method is not recommended for external hard disks unless you are very sure that the external hard disk is mainly used for a single device and the data has been backed up.