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[Solutions for] Windows 10 "Settings App" Not Opening or Working
Use the System File Checker tool to repair missing or corrupted system files.
To do this, follow these steps:
Open an elevated command prompt. next to Windows start button, perform a search for cmd.exe and press enter key.
The top search result should be Command Prompt.
Right click on the “Command Prompt” result and then Left click on the drop down list to select “Run as Administrator.” When asked for further run permission, click YES. The black command window should then open with administrative privileges. This is known as an elevated command prompt.
If you are running Windows 10, Windows 8.1 or Windows 8, you should first run the inbox Deployment Image Servicing and Management (DISM) tool prior to running the System File Checker.
Type the following command code in the black elevated command prompt, and then press Enter.
DISM.exe /Online /Cleanup-image /Restorehealth
It may take several minutes for the command operation to be completed.
Now, after DISM has been run, in the same elevated black Command Prompt window, next run the system file checker (sfc.exe) to scan for and repair corrupted or missing system files, as follows.
►CMD Command
sfc /scannow
Check to see if this corrected the problem. If not, then move on to the next possible fix.
You must first open an elevated Powershell blue window.
Next to the Windows start button, search for Powershell. Open the top level result with administrative privileges in the same manner that you opened an elevated command prompt with Administrative privileges. See above.
►Powershell Command 1
Copy, paste and run the following code in the elevated Powershell window.
Get-AppXPackage -AllUsers -Name windows.immersivecontrolpanel | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml” -Verbose}
In the same elevated Powershell window, copy, paste and run the following code.
►Powershell Command 2
Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Editing the Windows System Registry.
►Registry Path
In the search box, type the following and press the enter key
regedit
When the Registry opens, drill down the following path:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Right click on white space in the right side pane and select 'DWord32BitValue'
and then Name that new key
NoControlPanel
set the name
double click the new key to open it and then enter value data as
0
Close the key
Close regedit registry.
Restart the computer and check whether the problem is fixed.
If nothing above has fixed the problem, then open an elevated command prompt to create a new username and grant that name administrative privileges.
►CMD Commands for creating a New username and adding the user to the Administrators Group. In the two commands below, replace user_name with your chosen new user name.
net user user_name password /add net localgroup administrators user_name /add
Watch all of this process on youtube: https://www.youtube.com/watch?v=NexB57lGei4