1. How exactly do you try to move them (command prompt, cut/paste, drag and drop)?
2. Can you COPY them (instead of MOVE)? Use drag and drop.
3. What filesystem (NTFS, FAT32) is used on the Windows 8 laptop?
4. What is the full and exact message? To check that you write it correct, try googling it (with quotes around it). If no hits, there's probably a typo in it?
5. How big is that file exactly (in bytes, not in gigabytes)?