Windows 10 Start button not working

problem with inactive start button in windows 10. Left click functions not working, ie no cortana or drop down list such as sleep, shutdown etc.
Ian SherwenAsked:
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RaminTechnical AdvisorCommented:
Create a new USER account and switch into it and test again.

                                              * * * * *

1. Press the Windows button + R on your keyboard, and type cmd.
2. Choose Command Prompt (Admin). You must run the command prompt in Administrator level.
3. On the command prompt type sfc /scannow and hit enter.                                            
4. if SFC found error then type DISM.exe /Online /Cleanup-image /Restorehealth and Hit Enter.
5.restart your computer .

                                              * * * * *

Try  Windows 10  Repair Install with an In-place Upgrade.
    Go to the Windows 10 Media Creation Tool from this link:
Click on Download Tool Now, save it on desktop,  then run it as Administrator, accept license agreement, then Choose Upgrade This PC Now, let Windows to Update drivers. make sure that Keep Personal Files and Apps  is Selected  and let the Windows do the rest.

Note: The Procedure takes at least one hour.
JohnBusiness Consultant (Owner)Commented:
Of the list above, the first thing to run is DISM Restorehealth    Be sure to restart and test after.

Then, is the computer in Tablet Mode?  In Settings if you can activate Settings.
Hello ThereSystem AdministratorCommented:
This happened to me too.

1. Try to perform a system restore to an earlier point. If this will not help...

2. Check if your Windows is up-to-date. If this will not help...

3. Run Powershell as admin:
$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest
- Reboot the computer
If this will not help...

4. Run CMD as admin:
>DISM.exe /Online /Cleanup-image /Scanhealth
>DISM.exe /online /cleanup-image /restorehealth
>sfc /scannow
If this will not help...

5. You have to reset you PC: Settings -> Update and Security ->Recovery -> Reset this PC -> in my case I had to choose "Remove Everything (Just remove my files)" option, but you can try it with "Keep My Files" first.

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i also encountered it - and thought it was an update running, locking up the system
i simply powered off by touching the power button once - and restarted
Hello ThereSystem AdministratorCommented:
Good suggestions that usually solve this issue were provided.
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Windows 10

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