The usual workflow
Sort by size in Explorer, eyeball the copies, and pray you delete the right one.
Manual hunting misses renamed duplicates and never catches a resized photo. The dated free tools are off-Store and intimidating enough to burn people into deleting an original. “PC cleaner” suites bury the feature under upsells and telemetry. None of them prove they only touched the copy.
The DupeDoctor workflow
Scan, review the reclaimable headline, keep one, recycle the rest.
Drop in your folders and DupeDoctor finds exact duplicates by content, look-alike photos and videos by perception, and the other clutter that quietly eats your disk. One-click keep-strategies pre-select the extras, you confirm, and everything goes to the Recycle Bin — recoverable, with at least one copy always kept.