I am afraid that Microsoft has "fixed" something again.

I'm still playing Civilization 4,(saw no reason to try and play
Civ5 on a dial up line). I installed it to the Windows 7 box ¿4 years
ago? when I switch machines. It had an interesting quirk - random
intervals it would freeze the display, blink and resume. On occasions
I would be able to see the desktop before it resumed - something about
a display driver not responding.
Be that as it may, I could live with that.

But the last couple days, it sounds like the HD is trashing, and
there is some serious 'lag' - e.g., click for next turn, "drive
sounds" and four to five seconds later it acts. This can be a problem
when you're trying to do "go from here to there".
I have tried the reboot option. That clears the problem, if I do
not do anything else before starting the game.

I already had to delete a legacy game because (apparently)
Microsoft fixed something so it died. I really don't want that to
happen again.

--
pyotr filipivich
The question was asked: "Is Hindsight overrated?"
In retrospect, it appears to be.