It seems as though the Windows 10 "upgrade" process may not install all the files correctly, or maybe they're damaged, or maybe something else, but running Chkdsk has fixed quite a few of these minor glitches. Try running Chkdsk in "repair" mode to find any damaged files and hard drive sectors and then correct them. Start by opening a command prompt as an admin. RIGHT click on the Start button, choose "Command Prompt (Admin). (Or type "Command" in the search line, then RIGHT click on the "Command Prompt" listing at the top, choose "Run as admin".) Once there, type chkdsk /f /r /x, leaving the appropriate spaces between the letters as shown, then press the Enter key. You should see a note that it can't be run till a restart is done, type "Y" for yes, then press the Enter key again. Close the command prompt and restart the computer. Chkdsk will run upon restart and will take quite a while to finish.. Don't panic when the progress bar stays at 10% for a long time. It's fairly normal and the Chkdsk process may take a couple of hours.
When it's finished, it will boot to your normal startup/lock screen and you can login normally and then see if things are working correctly again.
Hope this helps.
Grif
Sometimes when coming out of sleep mode, my computer will claim there is no internet connection (even though there is). Usually, I will just turn off the computer, turn it back on, and everything is fine. Yesterday it was more serious, after I turned the computer off, and back on Windows 10 would not fully boot up. I got as far as getting into my profile, but no icons. There was nothing but that annoying spinning blue circle. Today I tried to enter in Safe Mode. I was turning on the computer and unplugging it when the Windows icon appeared. I heard that doing that three times will activate safe mode. After doing it twice, a message appeared saying "reparing disk errors. This might take over an hour." Now everything is working, but the problem probably isn't gone. That being that sometimes when I come out of sleep mode, windows doesn't recognize any internet connection.
Could there be a virus hidden somewhere? Is there a problem waking my computer up? The computer actually acts like it is still half asleep when it doesn't recognize any internet connection, as restarting it alone is an issue. I ran the Norton Diagnostics report and it says there is something wrong in Device Manager, but doesn't say what I need to do. Any ideas on what the real issue is, and how to fix it?
Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic