I wish you well with your hope, but think about the billions of instructions in Windows plus those in your apps. There's no real world way to test all the possible code branches, and no way to anticipate all the devices and "clever devils" who try to break into the system. And as Bob points out from time to time, when anybody can install anybody's apps on Windows, it's hard to imagine how all the possibilities for problems could be eliminated. Just ask the folks at Target, Home Depot, Sony, and some of the banks.
Actually before I started with PCs in 1989, I worked with mainframes for quite a while. I can tell you about the 026 keypunch and the 7094. Yep, I'm an old fart! Fortunately most of my neurons are still in pretty good working order albeit with a bit less speed and energy.
Good luck.