Software version: Latest (2015.10.0.2208), only AV installed no firewall, default settings with PUP enabled
OS: Windows 7 SP1
Previous AV: MSE (already uninstalled)
Firewall: Comodo Free, HIPS Disabled.
Problem:
I just installed latest avast AV to replace MSE on my system last week. On 3 separate occasions the CPU usage for avastsvc.exe would randomly spike to 100% on random occasions even with no application running. Disabling all real time protection (file/web/mail) would stop the CPU usage.
The latest one would be last night when I left my computer running overnight with no software running.
When I awake I hear my CPU fan was spinning full force for god knows how long already with avastsvc again being the culprit taking up 100% CPU
I have fairly beefy system (i7 4770k, 16gb RAM) and when running normal system scan Avast only takes up ~8-10% CPU usage. So I have no idea what could be causing this...
Solutions attempted:
- Full system scan with MBAM and Avast, 0 positive result
- Repair installation via program/features
- Reset settings
- Adding following line to webshield.ini
[General]
UseStreamFilter=0
Now the problem is completely random so I can't reproduce it at will, any idea what might be causing this or a known solution ?