XP Pro SP3 - Windows FW (sort of free) - Surun (free) = LUA smart (link http://kay-bruns.de/wp/software/surun/#8) - Trust-No-Exe (free) = SRP smart (link http://www.beyondlogic.org/solutions/trust-no-exe/trust-no-exe.htm) - Edgeguard Solo Beta (free) = extra contained threatgates (link http://www.blueridgenetworks.com/forms/es_register.php) - Set P2P, mail, IM, download, temp IE, recycler directories to limited user with XP Pro's SRP - Avira 9, high heuristics, check on all file types, only at write, safer driver load, optimised scan (also rootkits) - Keyscrambler free for IE8 (default banking/shopping browser), Chrome's internal sandbox (using Chromium for daily browsing) [EDIT] - Arrovax shield freebie (old, but still works, tracking cookies disabled, becasue they are not updated) to provide some additional user space protection - Rising PC doctor Free (IE frame protection and USB main reason) Two essential utilities for ACL http://www.fajo.de/portal/index.php?lang=en&option=com_frontpage&Itemid=1 for additional NTFS access policy management (missing security tab for files in XP Home). And ACLView, download from http://web.archive.org/web/20071026...hp?f=data/en/download&img=images/baner01e.gif) Used the above to gibe surunner plus current user access to diskcleaner and setting restore points/go back (C:]\windows\system32\repair), plus defraggler, OSAm and Panda anti-rootkit. Can use Windows recovery to 'undo'user space intrusions now plus repair capabilities of arrovax shield and Rising PC doctor. What do you think? a) does it feel responsive? yes b) has it low memory usage? yes c) low CPU time usage? yes d) low I/O overhead? yes e) safe?