Let me start off by saying that I do not install anything on this workstation, except Windows updates (which I should probably stop doing as well after I fix this issue). The unrelated problem started after update KB3013455 was installed in Feb. 2015. To spare your time for explanation, it messed up Windows fonts. Here's a recap.
To be able to use my computer I had to uninstall it manually. After which I started to notice that once in a while when I left-click something, it gets interpreted as a double-click. Unfortunately, the issue doesn't manifest itself all the time. I also know that it is system-wide because it happens in several programs.
After I rolled back KB3013455, I installed it back along with the fix KB3037639, hoping that it would solve my double-clicking woes, but it didn't...
So I was wondering what the solution was to this problem
My OS is Vista x64.