using Symantecs Norton Internet Security my HD space got less and less....
I found the invisible folder: c:/RECYCLER/NPROTECT with a lot of trash although I removed all files form Norton Protection!?!?!?!
The folder contains far more than 1 GB.
How about CCleaner to detect this????
Regards,
Ernst

Hi and welcome

The "Norton Protected Recycle Bin" is hidden from Windows API, the purpose being precisely that the contents BE protected from accidental deletion, so CCleaner will in all likelihood not be able to empty it.

If you don't care for it, you can disable this feature, or alternatively, occasionally empty it manually from within NProtect's options.

Here's some reading:

Emptying the Norton Protected Recycle Bin
Disabling the Norton Protected Recycle Bin

Thank you for your help but I already tried this and it doesn´t work - it seems to me nProtect is unstopable on my system....
Regards,
Ernst

Did you try the instructions under What if this does not work to manually delete the Norton Protected Bin?

That will remove it including all contents; after a reboot an empty bin will automatically be created.

there were about 20.000 files in c:/recycler/nptotect but on the delete command "the system couldn´t find them"????
Regards,
Ernst