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 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
Ok, let me start by saying this is a tiny issue. System is running just fine. Windows 10 with all the updates, X64 bit. I will do my best to explain the issue. When you access file explorer, there are specific links on the left hand pane at the bottom. It starts with This PC, 3d Objects, Desktop, Documents, Downloads, Pictures and then it is supposed to have Music then Videos. Those 2 specific links are messed up. Both links shows the same name. I can change one of them to Music and then the other one will show Music. I can change the links to Videos and then both will show Videos. I try to change one to Videos and one to Music without success. I cannot remove them due to the fact they are system folders. What could be causing this? I know its a tiny issue compared to the system not running issues. I just want to understand and fix the issue. All help is very appreciated.

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