If you still have Windows installed on that HDD and is formatted as NTFS, then make sure you disable from Windows the Fast Boot and that Hibernation thing it has.
Then on Manjaro install the ntfs-3g package, then you can mount via File Manager that partition and do modifications on your files.
If you need to mount the partition in read-write mode and are not able to or willing to boot into Windows and shut it down completely there is a third option. However, it is not included here because it completely deletes hiberfil.sys and will cause you to lose all unsaved information in the hibernated Windows programs. The following is a quotation from man ntfs-3g about the option that would be used to do this.
$ man ntfs-3g
...
remove_hiberfile
When the NTFS volume is hibernated, a read-
write mount is denied and a read-only mount is
forced. One needs either to resume Windows and
shutdown it properly, or use this option which
will remove the Windows hibernation file.
Please note, this means that the saved Windows
session will be completely lost. Use this op‐
tion under your own responsibility.
...
If you understand the above disclaimer - execute below commands in a terminal window.
Replace sdxy with your device names - from the output above devices using ntfs is /dev/sda2 and /dev/sda3
/dev/sda2 on /run/media/matix/EA603A0D6039E0CD type fuseblk (ro,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2)
/dev/sda3 on /run/media/matix/Local Disk type fuseblk (ro,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2)
mount -t ext4
/dev/sdb2 on / type ext4 (rw,noatime)
/dev/sda4 on /run/media/matix/82b2a487-fea3-44fd-94f8-5b729b4db29f type ext4 (rw,nosuid,nodev,relatime,errors=remount-ro,stripe=4,uhelper=udisks2)
ok both NTFS partitions are mounted in read-only mode. Could be because the filesystem is in a dirty state, a hibernation file is there or fastboot was not disabled on windows. Linux have just minimal tools to solve this, but nothing like CHKDSK from Windows. If no windows available, then try this:
Unmount the partition.
sudo umount /run/media/matix/EA603A0D6039E0CD
Then run:
sudo ntfsfix --clear-dirty /dev/sda2
Mount it again:
sudo mount /dev/sda2 /run/media/matix/EA603A0D6039E0CD
If you are going to full linux on this computer, then switch to a linux filesystem, since NTFS is not fully compatible with Linux, just what is necessary.
I run this command
sudo umount /run/media/matix/F86493E76493A6C2
and give this error
umount: /run/media/matix/F86493E76493A6C2: no mount point specified.
I found this
/run/media/matix/Local Disk
and run this
sudo umount /run/media/matix/Local Disk
and error
umount: /run/media/matix/Local: no mount point specified.
umount: Disk: no mount point specified.