magna86
17
Hm…probably there is a process or a program that can not be shut down because TFC when it’s start trying to terminate all running processes including explorer.exe.
You would solved TFC problem by searching task manager for process or system tray for running programs that refuses to be shutdown.
For temp & junk cleaning you may download and install CrapCleaner ( aka CCleaner ) instead of TFC.
http://www.piriform.com/ccleaner
CCleaner also has a light registry cleaner.