This is a failed laptop. Use the warranty next.
Hi guys. Pc have a problem. I have a Toshiba Sattelite a660-12x and a few days ago, after installing windows10, the network wouldnt enable. I tried everything, bios default settings, cmd commands to enable it, so many things... then I took it to an informatic shop, so they could fix my pc. Well, they told me it was windows10 that was the problem and we had to downgrade to 7 again (the problem wasnt the wlan hardware cause they say they experience with another ano and same result). So I did. Same result of network not enabling. Then, I took pc over the shop again and one they later, they had fix the problem. Wireless is good again. Now, the problem is that after I use the pc a while, it just disconnects the internet (and the network button in windows bar stays on!), and if I go to network and sharing center, it doesnt open it, and lags the pc. Even the usb ports dont work after that. I can't shutdown the pc afterwards because it wont shutdown. It just says "Shutting down", or something and don't power off.
I installed drivers, format the pc, everything. What could the problem be? PLEASE, help me.