After cleaning my laptop, I restarted the device and the screen went completely black and has not returned. Help?

When I turned on my laptop to sign in, both my touchscreen and mouse pad would not work. How can I fix this?

Why is my volume on my laptop all the way up, but there is no sound coming out of my speakers?

Plug your laptop in to make sure the battery isn’t just dead first. I'm assuming that there is still internal sounds coming from the laptop, so hold the power button until the laptop shuts off completely. This should fix your problem. You will see the windows recovery screen; select "Launch Windows normally".

If the mouse is wireless check if the batteries are dead or not. If your mouse is wired try removing the USB adaptor from the port, and plugging it back in. If that doesn't work, try using a different port. For the touch screen go to the SETTINGS on your computer, and make sure that the touchscreen setting is turned ON. You can get there by clicking on: Settings>Devices>Mouse and Touchpad.

First check that the application you are using has its volume all the way up. In the bottom right corner of your desktop there is a little carrot. Click this and then right click the miniature speaker icon and check that the application is not muted. If this doesn’t work you may have to update your audio drivers. Here is Dell’s drivers page: http://www.dell.com/support/home/us/en/1...-support/servicetag/B3Hwrt1/drivers.