We had a power outage and my Dell all in one was in sleep mode. The next day I could not log on to windows 10 with pin, then noticed I had no internet connection. Looking more all of my tasks were disabled and I cannot change them back. I have tried using an Ethernet cable to my modem, but still not working. It also shows The diagnostics Policy Service is not running. Has this happened to anyone before and how do I fix it?