In the process of daily maintenance I updated to the latest build of ccleaner today and ran it (from a script). Wondering why it took so long to clean, I opened the UI and was horrified to find that it was in the process of deleting my sandboxes!!! I checked ccleaners version history and found that it now supports Sandboxie - enabled by default.
All my sandboxes are now - securely - deleted and a lot of work is GONE.
Why is cleaning of new supported applications enabled by DEFAULT?