Files deleted from a removable USB drive may not appear in the Windows Recycle Bin. That does not prove they are permanently gone, but continued use can overwrite the space they occupied. Stop copying files to the USB drive until you have checked it.
Step 1. Open File Explorer, confirm the USB drive letter and the folder that originally held the files. Search that drive by filename or file type, and check whether files were moved to a different folder.
Step 2. Check Recycle Bin only if the files were deleted from a local Windows drive. Removable-drive deletions, Shift+Delete, and some applications can bypass it. Do not format the USB drive or run repair tools before copying any files that remain accessible.
Step 1. Install Qiling Deep Data Recovery on the PC or another drive, not on the affected USB drive. Open it and choose USB/SD Scan for the removable drive.

Step 2. Select the USB volume by its capacity and drive letter, then click Scan. If Windows asks to format the drive, cancel that prompt and scan first.

Step 3. Review the result tree and preview candidate files. If the quick result is incomplete, use Deep Scan and check again; filenames or folder paths may be missing from heavily damaged media.

Step 4. Select the files to keep, click Recover, and choose a folder on a different physical drive. Open several recovered files before considering any repair or reformat of the USB drive.

Recovery depends on whether the deleted data has been overwritten and whether the device is readable. A cloud share or network folder has different deletion behavior; check its version history or server-side recycle bin instead.