Hi,
I do not "build" my own computers, my friend does.
But the whole software setup is all mine. I can not figure out why an "image" would be that important ... that you have to redo the whole machine. If it was setup correctly, Windows first, then the Firewal/AV (etc), and then the Updates, then you are (conceivably) properly protected, and in the last 8 years I have had only one problem with one of those rotorooter kits, and F-Secure log'd in and cleaned it and voila ... fixed. By that time I had removed all software in the computer, and only had Windows and F-Secure to ensure that the smallest number of files was in trouble.
Since then, I do things manually, and I will NOT (EVER) by a named computer, because of the crap that is added to it that creates more connections than you can ever conceive or expect. Those named computers would be tough on most musicians that use them for their creations. One more slight detail ... I do not use "Home" editions. I have used Professional Editions ONLY, for the past 10 years, and in fact went immediately to 64bit on W8 when the silly setup would lose the Name Resolution Information and kill the home network information. The 64 bit does not "lose" it, but it is very sluggish when the other computer comes up or went to take a nap. You have to go to the other computer and tap a link this way, and then it wakes up so you can go that way. Talk about sloppy merde!
My experience has been, that if folks get infected and hurt like that, there is something not necessarily good that you are doing on that computer ... thus, I only do email/browsing on Cymbaline, and never on the other computers, for example, which, so far, has cut down the problems considerably!