Hi I was still trying to decide whether to do a clean install this morning. I was checking to make sure that Guild Wars 2 was working after my recent redo of my second hard drive when the game suddenly closed and the message, "Windows need to restart several times to finish updating". I had not asked it to update, but I decided what the H, and let it reboot. So I'm all updated to build 9926 and it looks really good. There's only one problem, as I feared my sound is all messed up. I updated my sound drivers and now my sound doesn't work right. It is exactly the way it was when I updated to Windows 8.1, and when I manually updated the drivers for my sound card by downloading the drivers from Creative. Anything with speech in it is basically a mess, and that included Cortana. No sound from her at all, or my Windows sounds that I've made using TextAloud, these are all .wav files. If I play video online the speech is messed up. The normal Windows sounds and my music files play OK, anything with speech, either computer generated, or just regular recorded sound are either distorted or nonexistent. I'm not going to roll back to the earlier version this time, I need to get this fixed. I have two options, I can roll back my sound driver to what it was in Windows 7 and 8, (prior to Windows 8.1) or I can get a new, non Creative sound card. Can anyone tell me if it's possible to restore my drivers to what they were before the latest update? I'd also like to know what sound card people are using that doesn't have any issues with the later Windows versions. I'm going to ask Creative support but I did that before and got nothing in the way of a solution. Thanks for the help. Mike I just discovered that I get exactly the same kind of distortion in Skype, the sound is muted and badly distorted, it sounds like someone talking through a dozen pillows at the bottom of a well, and is completely unintelligible. Computer Games as well. Ambient sounds, music etc, are fine, Voices are not distorted but are so faint that you can't understand them, even when turned to full volume. Weirder and weirder, I'm playing Dragon Age Inquisition and suddenly a voice booms out at me. It seem that because the voice is part of the background sound it plays normally, while voices that are part of the game play do not.