Payment only upon full satisfaction
Set date & time of your preference
Transparent and all-inclusive pricing
You can adjust the screen brightness of your Windows tablet in the "Settings" > "Brightness and color" uncheck the box "Change the brightness automatically when lighting changes".
First of all make sure no additional output devices are attached. In "Settings" > "Sound" you can select the correct output device and press the "Troubleshoot" button below the master volume dial.
Press and hold the power button until the device switches off. This usually takes 10 seconds, after that you can release the power button. Press it again to turn the tablet on. If the tablet boots to the "Choose an option screen" you can select "Troubleshoot" > "Advanced Options" > "Startup Repair", if this fails you can try "System Restore" instead, which you can also find under "Advanced Options".