D:
Replace the letter E with the letter of your external drive. run chkdsk on external drive
External hard drives and SSDs are lifesavers for extra storage, but because they are frequently plugged in, unplugged, and moved around, they are prone to file system errors and "dirty bits." If your drive is acting sluggish, showing "File or directory is corrupted," or refusing to open, Windows has a built-in hero: (Check Disk). D: Replace the letter E with the letter
CHKDSK scans the file system and disk surface for issues. It can fix three major problems: and moved around
macOS has a similar utility called Disk Utility.
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