Device Manager errors feedback required

Can I trouble you for your feedback on something else. Every few months I clean install the Windows operating system on my PC. Is it the same for you in that sometimes the Windows 8 setup picks up all of the devices (it usually only misses one..a Bluetooth peripheral device with a question mark. That's easily sorted by installing Wireless drivers from Dell site). Then on other occasions it'll leave the occasional exclamation mark usually listed in Other Devices but not always. That disappears when the chipsets are installed. Most of the time I never get these at all but its happened a couple of times lately. Im wondering if its caused because Im installing from Windows 8 DVD and not from a factory image.

I guess really what Im asking is..Is the Windows Installation sometimes a bit hit and miss at picking up everything in Device Manager during initial setup?