Hey Bro.
I'm sorry to hear about you losing the performance of your setup due to merely changing to the latest version of Windows........, but I guess that's why I went with Mac after all, there's just something about a metal alloy chassis that I've come to adore more then plastics. I was beginning to wonder why I hadn't been hearing from you........., but I'm certain you'll sort things out in due course.
On the cabling tip, while I came late to cables being that I grew up with all things Naim/Linn/Chord Company between the periods of 1985 - 2000, at which point I went over to solid core in the form of Harmonic Technologies in 2000 and ending with Acoustic Zen in 2010, and gone through a few others since, but to my ears there's a certain beauty in how OCC Copper seems to have refinement and accurate dynamics done with such ease in the same passage, it's down right spooky.
But you know the old adage, once we've become exposed to more balanced designs, it's hard to go back to anything less and to my ears there's are very natural as well as dimensional in how they simply allow the notes to flow so much more delicately, yet responsive in a manner that has to be felt/heard to be believed, I'm with you on this one as well and only wish I had explored CRL cables years ago, I'd only imagine just how much they'd have added to a few of the well matched systems that got away because I didn't understand how to voice them at the time............., but those days are long behind me, as is the quest for newer components merely for the sake of change, but very little else.
Live, learn and be done with it I'd say. If a component isn't broken........, why then change it?.
Be well as always little Brotha.
Peace beyond to you and yours.