System Mechanic 5 High-speed disk defrag and optimization utilizing proprietary Caterpillar Technology. Boot-time defragmentation allows you to defragment system files before Windows starts. Startup Guard prevents rogue programs from adding themselves to Windows startup Eliminate hazardous spyware and adware on your computer with Spython. Software Uninstaller completely removes any program, even if it doesn't have its own uninstaller Advanced Registry tools repair, optimize, compact, defrag, and backup the system Registry. Integrated Popup Stopper eliminates annoying Internet pop-ups and web advertisements.