Windows 10 Professional has been a pretty outstanding OS since moving from Windows 7 Professional but it is really odd when particular errors occur. One recent has been when clicking on the START button, a message is received that a criteria error has occurred and a logout has immediately happen.
At the lab it did occur and it was thought to log out from the session to see if Windows actually repaired itself. That of course did not happen and the entire Start / Cortena / Notification did not work and the same error message about criteria error would be displayed to do it all over again. It does sound like ground hog day but the next usual step was to go into safe mode.
From the sign-in screen
Restart your PC. When you get to the sign-in screen, hold the Shift key down while you select Power Power icon > Restart.
After your PC restarts to the Choose an option screen, select Troubleshoot > Advanced options > Startup Settings > Restart.
After your PC restarts, you’ll see a list of options. Select 4 or F4 to start your PC in Safe Mode. Or if you’ll need to use the Internet, select 5 or F5 for Safe Mode with Networking.
The lab would enter into safe mode and then restart the machine. Once again the similar issue occurred that a criteria error has occurred and a log off has to take place. Now this is pretty disappointing that a new OS is giving out such errors and there seems to be no method to repair. After reviewing the event log there were numerous COM errors that did not make any sense, could it be the last Windows update or software installation but after careful review it was that Dropbox Windows Application was giving the error.
Dropbox was uninstalled and sure enough everything has been smoothly working for the past few days as well as no COM errors in the Windows Event Log. This could be from OneDrive that is having issues with Dropbox or something else but this does not give you a warm feeling. The best recommendation is to uninstall the Dropbox Windows Application and just use the Browser to interface with Dropbox, Windows 10 is still brand new and the bugs will occur but it is just a pain to not know what to fix when errors do appear without any leading factor.