Hello I am running into a number of, windows I believe, related issues:  

1) I am using a Realtek wireless network adapter, I have the latest driver for the usb device, system tells me everything is working fine and I have a good strong signal.  System recognizes my network, secures to the network but cannot connect to the internet.  I try to enable the device via the change network adapter, system says I'm connected but I'm not.  I get the odd message about drivers not recognized but when I check that the system says I have the latest driver..   The system keeps dropping the connection forcing me to uninstall- reinstall, reboot, cold boot, remove the adapter.  after a series of different exercises the connection reestablishes for at times a few hours or in other cases a few seconds.  I have diagnosed, I've gone into power management to keep PC from turning off the device (which doesn't work by the way as I have to continually reset).   

2) frequently when I restart, the system just goes into a cycle and does not restart, some of the messages from the BSOD include: "Driver, Power state failure"   "system exception thread not handled".   Note that at times even when I shut down via the screen prompt the system does not shut down and I have to manually press the power button which is not good but I have not choice.  

This is a brand new out of box PC, and these issues have been occurring since day 1.   Your help will be greatly, greatly appreciated.