There is EEK on USB drive as another on-demand scanner. For MBAE/HMPA - don't need it just because I got parents learned Linux and they got separate surfing machine based on Linux Mint with weekly backups to one PC which isn't on net but it is LAN only (sort-of NAS with Debian on it)
For me with UAC on default somwtimes slows my work (especially when need to run Dxtory while in already opened game which want to record some gameplay) so that is reason why it is on don't dim option. Plus SmartScreen on Recommended is OK for my usage of PC which don't include some strange downloads (like cracked games which is, meh, rather would buy it for cheap at Steam/Origin Sales then crack/patch it)