What is the folder "C:\SITShred" and why is it full of files?
You are currently running an operation for shredding free disk space. This operations creates a temporary folder on each selected drive and fills it with large files until there is no more space left on the disk. This folder can also be present if the operation has terminated unexpectedly. If this folder is present without the Lavasoft application running it will automatically be removed the next time to start your application.