By default Windows DreamScene will have audio and sound output turned off and disabled as mute. So even if you set a exciting video clip with surround, there will be no sound play. However, users can always turn on or unmute the DreamScene audio output to hear the sound of the videos.
To enable or unmute …

Everyone have something secret document in their computers, and lot of times others are using our computer, so we quite worried about our personal data. Here I suggests you a small and easy solution for hiding any specific drives from your computer.
It’s all about registry.
Steps to hide your computer Drives

Click on Start and open Registry …