I have just deleted a great number of folders and files in my Google Drive, some of which were shared with any unknown persons, I haven't checked and can't remember. Deleting worked fine at first, the folders and files disappeared from my Drive. I then emptied the recycle bin. But the used space didn't decrease.
The list of the largest files still contains many (or all) of the shared files I just "deleted". They shall be located in the recycle bin and I was offered to restore them. Which I don't want to do.
What can I do to really delete those files from everywhere and forever, no matter whether some of them were shared with other users or the public? Those files are not needed anymore and I want to clean things up and not leave any data somewhere unnecessary.