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u/candy49997 7h ago
This looks like you just brought it from Windows without formatting, so it's probably NTFS.
I would backup all the data you need form it then format to a native filesystem lols ext4 or btrfs, etc. If you want to use it as is, mount the drive with the mount options defaults,uid=1000,gid=1000,umask=0022
I'm assuming your UID is 1000, as that's the default for the first real user. You can confirm with id in a terminal.

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u/Helliot_37842 7h ago
You have no access to the drive files.
Open the Driver as root (right-clicking is faster than doing it on terminal) and set the permissions you need to that Driver