We all know Sandboxie sessions are recoverable from the standard deleting of the sandbox. The only way to make the session untraceable is to securely wipe the sandbox contents. Now If I were to start a Virtualbox session and turn it off and restore the previous snapshot, would anything in that session be recoverable? For Example: Let's say I start up Virtualbox session and inside my VM I create a few document files using Microsoft office. I would then turn off the session and restore to the last snapshot. (Which in theory should erase all the contents of that session) Now would these documents be recoverable using file recovery programs or would terminating a session pretty much securely wipe all the history and contents?