What should I do if I can't open the menu message bar after upgrading win10?

After upgrading to windows10, some people will not open the start menu, the message button does not respond, etc., the removal of the small arrow, or the cleaning of the registry without backup will occur, you need to back up the registry. Download a 360 registry cleanup stand-alone version to restore the registry directly when the next problem occurs, if it is the first time this problem can only be "reset the computer." Here are the steps.

1. Right click on the desktop, click Personalize or display settings.

2, then look for input update settings, this is a way to not back up the registry.

Note: Reset it, remember to back up the registry next time.