Welcome to our forum. I’m not entirely sure what you mean by
i can see the hfs partion hardrive fiile size is larger then the files i have copied to the other external drive
Could you please explain this in more detail?
If you’re seeing hidden files, it’s simply because the File Explorer feature to show hidden files is enabled—there’s nothing unusual about that.
Regarding the missing files, you might want to check the Recycle Bin on the original drive to see if they were accidentally deleted. If they’re not there, you’ll likely need data recovery software that supports the HFS+ file system on a Windows PC, such as UFS Explorer or R-Studio. You could also consider using other software that recovers files by signature rather than by file system records, like Disk Drill (which supports nearly 400 file types) or PhotoRec (which supports 470 data types).
To understand this completely, you can also refer to our article on recovering files from Apple file systems on Windows.