I do not know if it's a CCleaner bug or Windows bug, anyway I post here. I have a problem with CCleaner Pro latest version. I always use to put the PC into sleep mode, sometimes randomly after wake PC, CC monitoring no longer works. It is active both in the icon of CCleaner than in Windows task manager, but really it is not working. I tested it with IE 11. Even restarting the program does not change anything. To fix it, I have to logoff or reboot system. Some solution? System: Windows 8.1 x86.