Tech Toolkit is a collection of free software tools and utilities which should let you cope with just about any emergency or problem on your PC. You use Ketarin to first download all your tools and it will automatically extract them to their categorized folders. Once Downloaded you can then open Pstart.exe ,its menu is already configured to show the downloaded tools. You would then use Ketarin weekly to auto-update all these tech tools so you would always have a fresh copy of the program on your USB. You can also add your own favourite programs if you want. Undelete files, manage wireless networks, repair stuff and lots of other goodies. Definitely worth a download.