Diskdeleter - Diskdeleter is data removal software that helps protect your privacy by securely deleting data from your hard drive.
WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
DriveStrike - Remote Wipe on any operating system in one place using DriveStrike. Data Breach Protection for your laptop, smartphone, and tablet.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Wiperapp - Software build to meet all needs of companies dealing with erasing data on daily basis.
TreeSize - TreeSize tells you where precious disk space has gone to.