When installing a new AV. First to do is to scan whole system and data drives. I think an AV calculates hash of all the files. Then when you open an file explorer and browsing the file structure, it does not have to scan all the files, because hash are already "scanned". Do not enable "scanning archives while downloadin". It slow dows the system a lot. For example, i've tried Zonealarm Antivirus(old Kaspersky engine, still gets the latest signatures tho). After installing and scanning, its really fast and effective. Zonealarm Firewall is really good, what comes to how a malware can disable your layered protection. I've tried several softwares to disable Zonealarm firewall, but failed miserably. It loads so early, that rare even none malwares cant connect to servers DURING boot-up.
So, never ever use a WFP based firewall
So, never ever use a WFP based firewall
