Make an avira guard research exception for comodo files.
You can’t however expect avira to say comodo is safe, or the other way around: never shall a commercial editor advocate for its competitor, and even on a technical point of view, if you don’ t assume that each of the editors has hacked and reverse-engineered the other, they would have no other way to tell about safety then public rumor.
Let’s formulate the question in another manner: what is the software whose default settings allow scripting in your back and remote control of your registry?
The answer is windows, shoud it be trusted by whatever security editor? If it had to be, we would not need any third-party security software, and both Comodo and Avira would be out of business.
Now, i can understand running the firewall x and the antivirus y, i a myself running CIS3 and avira, and i can also understand running from some time to another an offline third-party dedicated malware tool, call it mbam, spybot, or whatever you want.
But there’s no point in running together 2 anti-virus, or 2 hips, it could lead you not to have a better security, but indeed a worst one, as you can’t ask two softwares to monitor the same files at the same time, and it could even crash you (i suspect a Microsoft Office crash yesterday, with no other issue then full formatting, to be due to concomitant agressive avira guard and defense+ settings).
if you wan’t to run Comodo and Avira together, the only real safe attitude is to only install Comodo firewall and defense+ (proactive mode) and to only install avira scan, excluding from guard the dedicated partition where your legit softwares are installed: if firewall and defense+ do their job,they shall deny access to these files.