Envy x2 random loss of sound and bsod "sdbus internal error"?

So there it is on the topic. I have some random times when i lose sound when watchin youtube or something. Sometimes it helps to reboot browser and sometimes i need to reboot.

And another problem is random BSODs saying about "Sdbus internal error" 

Any ideas on how to fix them?

And should the tablet microsd slot support 32gb microsdhc cards? Mine isn't. Deck does support.