I didn’t change anything at CIS, must be something within the last update or the other windows environment.
What I’ve done so far:
first I though I got infected. But after several scans with other AV tools (Clamwin AV, McAffee Stinger, Comodo Cleaning Essentials, Norton Power Eraser, Dr. Web CureIT, Spybot S&D) I’m pretty sure there is no infection.
then I tried to undo the last changes at windows I remember so far which means I uninstalled some software
last thing: I uninstalled CIS and reinstalled (after cleaning with official Comodo cleaning tool). Installation without problems, computer restart, “Security agent could not started”. Tried safe mode, but same error message, but nox the diagnostic tool found some unrecoverable errors (without showing me which errors, but I created a log). Next: uninstalled and tried the actual CIS v10.2 and after that (same error) the older CIS v10.0. But same situation here. “Security agent could not started” without errors within diagnostic but in safe node some unrecoverable errors.
Please try following steps and let us know if it solved the problem:
Step - 1: Try to launch CIS interface from desktop shortcut, if doesn’t work try step-2.
Step - 2: See if you can locate CIS tray icon in system tray, exit and try to launch CIS interface as mentioned in Step-1, if doesn’t work try Step-3
Step - 3: Locate cistray.exe in TaskManager, terminate and launch CIS interface as mentioned Step-1