SDelete - Securely overwrite your sensitive files and cleanse your free space of previously deleted files using this DoD-compliant secure delete program.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Wise Disk Cleaner - Clean junks of Browsers, remove junk and useless files of Windows and Defragment your disk. Wise Disk Cleaner can delete these unnecessary files on your hard disk to free up disk space and make your computer run faster.
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Windows Disk Cleanup - Disk Cleanup is a computer maintenance utility included in Microsoft Windows designed to free up...
Advanced SystemCare - Free optimization software & registry cleaner for Windows 10, 8, 7, Vista and XP. Advanced SystemCare Free to speed up PC, clean registry and repair system in one click.