CCleaner wipe free disk space limitations...

[AstroBenny]

Just something that caught my attention and doesn't make sense to me

 

"Wipe Free Disk Space limitations

CCleaner can't wipe every deleted file from your free disk space. There are some limitations, because of the way Windows stores some files.  Here are some examples:

 

The file has been overwritten by another file (so no need to overwrite this again)

But it's not free disk space if it's in use?..

The file had been overwritten by another file before you ran CCleaner, but the second file has now been deleted as well.

Can someone explain this?

The file was created almost exactly when you ran CCleaner."

Obviously...

[Electronics Wizardy]

Why is this a problem. You don't need to remove the deleted files. That space is already free.