In an NTFS drive, I have a folder with 298 files inside. When I select the folder properties and check the size (not size on disk), it is 458 MB (480.581.212 bytes). However, if I select all 298 files contained in the same folder and check the total sizes of the files (not size on disk), it is 457 MB (479.424.094 bytes) .
This does not seem to be a matter related to sector/cluster size. This should be caused something different. My question is why is the size of a folder not equal to the total size of its contents?
Do you think it might be caused by directory entry?
One thought straight away have you checked for any hidden files/folders so you can select them too?
Obviously, this would rely upon verifying that you have in fact got all of the files selected within the folder…
Is it just one directory? I have tried several short ones on Win 7 64, and all match exactly
Maybe a reparse point in there somewhere.
Need more data. What OS and which folder?
It is Windows xp pro 64 bit edition.
And it is just 1 folder, with no sub folders and no hidden files inside. And I have selected all 298 files contained before I checked the total size.
Actually, I had created this folder years ago in another hard drive. And I have just copied it to my current drive.
The same situation seems to be true for some other folders, too, which I have copied from the old drive. Their sizes are equal to the total size of their contents.
Do you think the copying process from the old drive might have omitted some information while copying?
Windows can be quite dopey in terms of how it calculates folder size. Using something like robocopy with the /l switch to test for long file paths and other oddities is a start.
When you select the folder, right=-click properties - how many files? Still 298?
Happen to have screen caps?
In an NTFS drive, I have a folder with 298 files inside. When I select the folder properties and check the size (not size on disk), it is 458 MB (480.581.212 bytes). However, if I select all 298 files contained in the same folder and check the total sizes of the files (not size on disk), it is 457 MB (479.424.094 bytes) .
Does the disk chkdsk alright?
I see you selected "Show hidden files, folders, and drives" but have you unchecked "Hide protected operating system files"?