the fsck are successful, not sure every files inside are readable or corrupt but the most files I accessed look fine.Well, that's the nature of the beast, and what backups are for. Was your fsck successful? Can you now read the files on the disk?
If so, I would work on getting them backed up, but not necessarily trusting their contents. Older files may need checking against previously backed-up versions. Newer one may need their contents checking for corruption. Then ask yourself why you're using NTFS on this disk, and whether it might be better to adopt a different filesystem. For myself, I only use NTFS readonly, for reading disks written on Windows.
This partition actually created on windows 8. That time I only use windows and later on, I do dual boot but I keep the NTFS since I know Linux can access NTFS but windows not so I can reboot later to windows if I need to use proprietary tools such vs studio, illustrator, movie editor.
Later on, I just use Linux and lazy to change this partition to ext4 because I think, If I need the data inside, I can just took it out from this machine and plug, read it on windows machine.
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