To that setting (This isn't the correct audio playback but I don't want it to crash so I'm using a different one) I always get the blue screen.
Is it not worth to keep trying over and over? Am I missing something I'm supposed to download? Also, when using the optical is it making the E17 a DAC or an Amp?
what crashes? when you use 96KHz or 192KHz? if it crashes when using any of them, it would be a hardware or software error. this is probably on your hardware and software end.
proceed with my advice only if you maybe want help/solution i am not responsible for any damages or lost data; lets continue. make a restore point on your computer. then go and download the newest driver for your S/PDIF. it might be your chipset driver, south bridge and or audio driver. update as you see fit. then try again
When using with computer over USB, or S/PDIF(coaxil or optical toslink) the E17 will engage it's DAC and amp. when using through AUX in, the E17's amp is engaged. the DAC is not.