ComboFix will not run
if either AVG or CA anti-virus is installed as a protective measure against the actions of the scanning engine. This is because each of these anti-virus programs "falsely
" detect ComboFix (or its embedded files) as a threat and may remove them. If some of these files are removed, ComboFix will not perform its routines properly and the developer has determined this can cause damaging or "unpredictable results"
. Normally this is avoided by temporarily disabling the anti-virus until ComboFix has been run but AVG and CA cannot be effectively disabled. After restarting the computer, AVG re-enables all protections even if it hasn't passed the 15 minute time limit. As such, the developer has chosen not to allow his tool to run until the anti-virus is uninstalled first in order to avoid any potential problems. Please understand that this is an issue with the anti-virus and not with ComboFix.
Further, no one should be using ComboFix
unless specifically instructed to do so by a Malware Removal Expert who can interpret the logs. It is a powerful tool intended by its creator
to be "used under the guidance and supervision of an expert
. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again.
When issues arise due to complex malware infections, false detections, problems running ComboFix or with other security tools causing conflicts, experts are usually aware of them and can advise what should or should not be done while providing individual assistance. Those attempting to use ComboFix on their own do not have such information and are at risk when running the tool in an unsupervised environment. Please read the pinned topic ComboFix usage, Questions, Help? - Look here