https://social.technet.microsoft.com/Forums/en-US/764d3fec-a7f4-4108-9dce-c0a8b6ed734f/after-windows-10-build-10240-installation-start-menu-taskbar-ms-settings-not-working-and-some?forum=win10itprosetup Open up the cmd.exe interface as Admin and after C: prompt type this: powershell You then get this command PS C:\WINDOWS\system32> Then type or paste: Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"} You will get a series of processing strings in a series of 10 to 20, all will say successful. Let it complete until the processes have completed their task and then exit the interface. Very simple, very easy, Start Menu reappears along with Microsoft Edge and Action Center. No need to reboot either...job done! this work for me with the same problem Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}