On CCleaner Tools > Drive wiper> C disk, the suggested choice is "Free space only". However, if you go with "Entire drive", does it clean the entire drive or does it wipe everything out for good?
Be careful when using the Wipe function because it will wipe the drive for good. This is a measure to erase the partitions on a hard drive. Although the option is available, you cannot wipe the system partition.
