At 3:17 AM, Leo shut down the PC, made tea, and wrote a post on that same forum:

He grabbed a spare USB stick, downloaded GParted Live on his laptop, and in ten minutes, he was formatting the 2TB drive from a proper tool. Ext4, NTFS, didn’t matter. The corruption melted away like snow in spring.

Leo smiled. Some lessons, you have to learn the hard way—drive first, brain second.