Thanks for reaching out to Microsoft Q&A Forum. I understand you would like to safely copy all video files from one hard drive to another empty hard drive and you are concerned about missing any files.
Please make sure you already tried the Q&A Assist steps. In addition, to help narrow this down before proceeding, could you please confirm:
- Are the videos spread across multiple folders or drives, or stored in a single location?
- Is the destination hard drive an external USB drive or a second internal drive?
In the meantime, you can try these steps:
- Connect the destination hard drive and confirm it appears under This PC in File Explorer.
- Open File Explorer and select This PC to search across the entire source drive.
- Use the search box and type
kind:video, then press Enter to list all video files on that drive. - Press Ctrl + A to select all listed videos, then right-click and choose Copy.
- Open the destination hard drive, right-click in an empty area, and select Paste.
- After the copy completes, sort the destination folder by file size or date to verify all videos are present.
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