My computer is going on and off every 20 minutes and the internet is going off t

[Guest]

Hello,
how to fix my problem , my computre go on and off every 20 mimuites also my internet.

 

[aford10]

Right click on the desktop-->properties-->screen saver tab-->click 'power'-->power schemes tab-->change the 20 minute settings to never. Click apply, and Ok.