You know, Windows Defender pisses me off. And here is why.
Often when you are installing it you are doing so because you already have malware. Sometimes it is because you cant get into windows in normal mode and can only get in safe mode. Guess what? You cant install the darn thing in safe mode because you cant use MSI in safe mode! A tool like this should be installable in safe mode, thats all I am saying.
Another thing, it does not show you PROGRESS DURING UPDATING. I really, really hate that. I mean, with a passion.
Other than that, its a decent little program. Can't beat it for free with the real time protection.