When I switch on my SmartPC 250N,it shows BIOS Version,then it always does the memory testing,and then asked me to choose a mode for entry,after I chose one,it turns out a blue screen,showed UNMOUNTABLE__BOOT__VOLUME,I restarted,it was the same,and even I tried to boot from CD-ROM,still UNMOUNTABLE__BOOT__VOLUME.

 

What's wrong with it?

 

Anyone has any idea?

 

Thanks very much!