east-tec Eraser - Protect your sensitive data and privacy, and securely erase all evidence of your Internet and PC...
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Blancco Drive Eraser - Hard Drive Erasure Software
TreeSize - TreeSize tells you where precious disk space has gone to.
WipeDrive - Download WipeDrive Home for free using discount code: HOMEFREE
CleanMyPC - A smart cleaning tool for a better-running computer.