New here with a problem that I have been unable to solve. I have a Dell XPS 8700 running Windows 8.1. I don't know exactly when this problem started, but essentially this is what is going on. I used to have the computer go to sleep after 30 minutes, and for the longest time everything worked like clockwork. Then I would notice at times the computer would not wake up, and to get it on I had to hold the power button down until the computer shut down, the push it again to restart.
As I delved into this issue, I discovered other things going on. If a software update, whether Windows update or any application, required a reboot, the computer would go through the process, the screen would go black when Windows shut down, but the computer never reboots. Power light stayed lit, and once again I would have to hold power button down, until computer would shut down, then re-press power button to boot the computer. I also notice that when the computer was supposed to "sleep", it never would go into sleep mode, power button stayed brightly lit, instead of turning amber in color. Any ideas? BTW, I ran Speccy64, and here is its results, http://speccy.piriform.com/results/y57ypaGWUSlRdYUFrtBsrvf.