Dism++ - Dism++ is a free portable Windows optimizer and manager.
Hirens BootCD - Hirens BootCD is a powerful, all-in-one boot disk utility that will help you resolve and make reformatting your computer easily.
Ultimate Windows Tweaker - Ultimate Windows Tweaker is a freeware Tweak UI Utility for tweaking and optimizing Windows.
Ultimate Boot CD - The last Boot CD you'll ever need. You need the Ultimate Boot CD if you want to:
Win Toolkit - BUGS: Do not post bugs in the comments.
AOMEI PE Builder - Free tool to create bootable USB drive, CD/DVD or ISO file based on Windows PE.