Hey there, I was using W8 Enterprise and everything was alright. Today I installed 8.1 and the sound is gone. There is still the sound tray in the right corner and it looks as if there is sound when I play something. I installed the right software which is this: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS002833 I don't know what to do else.
Thanks in advance