DiskPatch - Did the entire hard disk go blank? Does Windows complain that the volume needs to be formatted?
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Recuva - Accidentally deleted an important file? Lost files after a computer crash?
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Free Data Recovery Mate - Free File Data Recovery Software provides 4 recover modes
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode