CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Dism++ - Dism++ is a free portable Windows optimizer and manager.
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
NTLite - The Ultimate Windows Customization Tool
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
Winbuilder - "WinBuilder is an engine designed to build and customize boot disks (Live CDs) based on...