Go to the 'File System" and find the drive in question. It's probably in /media/<username> or in /run/media/<username>
First way:
Right click, go to properties > permissions and change them from "root" to you, and hit the box that says "Apply Permissions to Enclosed Files"
Second way:
you could use the command line with
Code:
sudo chown -R <username>:<groupname> <partition or directory or filename
Both ways can take time if there are many files.
I still haven't figured out why some disks/partitions are owned by root and others are owned by the user. Perhaps someone else will enlighten us.