New
#71
Click Start, and then click Run.
In the Open box, type devmgmt.msc, and then click OK.
Device Manager opens.
Expand each listing with a yellow triangle.
Right-click the listing with yellow triangles, and then click Uninstall to remove it.
Restart the computer.
After the computer starts, Windows will automatically scan for hardware changes and reinstall the needed drivers.
If the above fails try the same steps again but this time instead of uninstall click update > browse my computer for driver software > choose the last known working driver for the device.
If the above fail post the driver details into the thread and see the prior post with the URLs for fixing the device manager drivers.
These are some troubleshooting links for the start menu:
[How To] Re-register Start Menu In Windows 10: [How To] Re-register Start Menu In Windows 10
Troubleshoot problems opening the Start menu or Cortana: https://support.microsoft.com/en-us/...t-menu-cortana
http://www.thewindowsclub.com/start-...pen-windows-10