In November, after the Win 10 10586 update I started to notice that on idle the 'system and compressed memory' was always running with around 12%-13% CPU usage (CPU 0 was fully loaded). The hardware (two months old) is stable, stock clocked, I ran Memtest86 for 8 pass (one day and half) without errors, never had a single BSOD. The machine is for photo editing and I try to keep all as clean as possible, no antivirus (work mostly offline), no bloatware, only the strict bare necessity. I have a new Skylake Z170 built PC, Win 10 PRO clean install + all updated drivers (from manufacturers website) and very few programs. I have read all what I was able to find (and not only here) on the topic but nothing solved my case up to now, I have something like 30 years experience with PC building/servicing and this is the first time I have to surrender, so I'm humbly here to ask advice.
