a) stronger "rules". I want updates applied on MY schedule, not theirs (I wait until right AFTER a daily image backup). I DON'T want Windows Defender. If I wanted "their way or the highway" I'd use a Mac :-}.
b ) Much slower boot. I don't know what it's doing after I get my desktop, but the time from getting the desktop to having all the startup programs (antivirus, etc) running, is much longer than windows 7. (like a minute).
c) less stable O/S. In using it for an hour on different machines, I experienced complete hangs and bad process prioritizing (I had a backup validation which used a lot of memory keep me from doing ANYTHING else, including getting to the CTRL/ALT/DEL menu - it hung up preparing the menu until the validate completed. This app (IFW) shares just fine on Win7). Also, seems like there's a lot of busy background processes slowing stuff down, preventing backups from even starting (they need other processes to stop writing to disk).
d) On one machine, running my backup program (IFW) in Win 10, it claimed I had bad sectors on my disk. I tried running chkdsk (annoying to use because you can't see details), and it appeared to hang (!). I reverted to Win 7, and both the chkdsk and backup ran clean.
Here's hoping W10 is more stable by 2019. I'm sticking to Win7 until then. I have better things to do with my life than wrestle with the O/S. Win 7 just seems less ambitious and so less troublesome.
Just my $.02. I respect that others may disagree. :-}
PS - my main machine is a 64b i5-2500 @3.3GHz - not an old or slow machine
Edited by jeffw_00, 04 June 2016 - 02:09 PM.