Deleted recycle bin items not recovered

They all were lost when Windows 7 did an auto chkdsk this morning when my pc started

I tried using free recuva wizard, it found 0 files in recycle. But it only scanned the D drive, the C drive is gray and is where the recycle bin is located.

the C drive is also gray for pictures, documents etc.

I attempted to do it manually, there are no options to recover recycle bin, but the C drive was available.

Disappointed. Suggestions appreciated.