HDD shows correct size but all folders show zero bytes(empty

[br945]

I have an external HDD.
The HDD size Properties shows correctly the Used space as 8 GB and free space as 1.5 GB.

However, all the folders are empty and also size is shown as 0 bytes.

I know that there are hundreds of files in the folders, but cannot see them and even explorer shows blank.

How can I once again see the files and open them?

thanks for advice.

[dmarques]

You should find some free app to scan your drive and try to see if your files come up.
You can use something like Recuva.