btgc
Veteran
When I was still using windows I would reformat my drives every 6 months just to get the computer running at a reasonable speed. I run lightroom, photoshop cc and photomechanic all run very smooth and fast.
Try running a 6 year old windows machine, maybe macs are more expensive when new but in my opinion much better value for money.
Oh and viruses are no big deal on a mac.
Is there chance C: disk were specified as a scratch disk for Photoshop, fragmenting it more than it does itself? I assume Macs may come pre-partitioned better and apps offer non-sys partition to install on, while I've seen many Win machines coming with a single big C: disk and people just put everything right there.
My old decommissioned now HP desktop runs fine. Back in the spindle days people used to put system partition on outer part of disk to make it faster. Now I'm tempted to put small SSD there to see it flying, just electricity bill (decade old processors aren't too efficient) slows me down.
Viruses? Since some time (10 years ago?) Windows users have to do some suspect things to catch virus. I think it changed since XP SP2 with built-in firewall? As one don't normally stick his penis here and there so we shouldn't do same on Net. Just be sane and think before doing.
I'm not saying Mac is overpriced or Win is better than Mac. I say Mac is better suited to masses who don't know nor want to know how stuff works.
And no, I wouldn't compare Windows to FSU, it wouldn't be fair to FSU nor Windows. Only time I would agree to this were pre-release of Win95 (Chicago) when it were quest of "how many minutes until restart?" but then I were also using rather complex apps.