I began to suspect this- what is needed is an SSD. But I am presently too poor to buy one now.
On my two desktops, my present WD one-terabyte drives have 64 MB cache. Isn't this good enough? Gads!
If this is really the case, couldn't MS in their wisdom, transfer this superfetch/whatever I/O **** to a readyboost and suggest thatusers - even us old desktop geezers - buy a 32 GB or even a 64 GB USB3 thumbdrive?
Ever since October, the latest builds have slowed down my desktops AND laptop terribly!
Until then - and from Build 9976 in January, Win-10 ran great!
I am beginning to suspect that before October, Win-10 was just a disguised Windows-8 !
BTW, these problems started happening just before I blew a WD Terabyte drive (the disk with the C-partition on it naturally) - there were suddenly I/O errors all over the disk, including on an EXT4 Linux partition. I managed to save most of my data, but had to re-install Win-10 Build 10565 on a completely new WD drive. The 100% disk problem continues on that PC, even after a new install from a fresh ISO DVD.
Is it possible that Win-10 caused my hard disk to thrash itself to death?
And if it WERE an SSD, how many read/writes can SSD memory take before it starts to degrade?
Something very bad around here...!