How to increase my internet speed
click on start click on run type gpedit.msc and hit enter go to networking templates on right hand side dbl click Qos packet scheduler. click on enable and change 20 to 0. You will see an increase of 10% in your internet speed. there are such 20 tweaks through which you can increase your internet speed 16 times. They are not provided free of cost.
Audio device error
As you don't say what your device error is I would suggest trying to download and install the audio drivers again. But the audio hardware is the weakest on the board and so the most likely to fail first. you can still add a soundcard if the onboard audio has failed.
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