Pretty funny, although still crazy. McAfee bought Dr. Solomon's AV in 1997. If you don't want to have issues with AV, just don't use any and don't click on an

Pretty funny, although still crazy. McAfee bought Dr. Solomon's AV in 1997. If you don't want to have issues with AV, just don't use any and don't click on anything and sit behind a firewalled router. If you have MFE installed: 1) disable OAS (On Access Scan) if it's slowing you down, re-enable it if your kids/family members that click attachments get on your computer 2) Set full scans only to be done in the middle of the night, or never (manually update), but don't expect the AV to protect you if you forget. 3) Set updates to only run only in the middle of the night or never (manually update), but see above about forgetting. Now you ask yourself, why in the F would someone's AV (any vendor) crank up in the middle of the day and screw me? If and when new important virus's are found (like Flame), the signature for that virus may be pushed out immediately, triggering a full scan. In the case of Flame the signer(Microsoft) was revoked, triggering a new full scan. Why is AV so slow? Most AV vendors have a huge signature of virii, and have to search each file for matching patterns (often having to match different sections of the file). Each new virus adds a new pattern, and adds just that little bit more overhead. There are some projects to do a predictive engine, but that requires overhead itself, and ends up really needing a lot more resources (block on every action while your predictive engine determines if the process doing the action is behaving or not, like having a Big Brother hanging out in your OS). I use both MFE and Windows on different computers, and remember, even if you install another AV, Windows Defender is still partially enabled on Win8+, probably because Windows is taking security more seriously.