Using this data is that you will have to delete the target partition first to create unallocated space. Disk Management merges partitions simply with the help of extending the source partition with unallocated space. If you are using this method, make sure to back up all your data before...
2.In theDisk Managementwindow, identify the disks you want to merge. If either of these disks already have volumes, right click on them and selectDelete volume. Make sure to backup data, if any before deleting the volumes. Once you delete volumes on the disks, you must seeUnallocatedlabel ...