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Reinstall Internet Explorer and Outlook Express on Windows

Open the registry as administrator.
Depending on the version of Internet Explorer, search the appropriate registry subkey, right-click on the IsInstalled (REG_DWORD) value and then click Edit.
To reinstall Internet Explorer 6 on Windows XP, use the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed *Components\{89820200-ECBD-11cf-8B85-00AA005B4383}

To reinstall Outlook Express 6 on Windows XP, use the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{44BBA840-CC51-11CF-AAFA-00AA00B6015C}

Set the value to 0 and then click OK.
Close the Registry Editor, and then reinstall Internet Explorer 6 or Outlook Express 6.
You can also fix this error by running Windows Update:

http://v5.windowsupdate.microsoft.com/fr/default.asp

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Repair 10 start menu and notification center

powershell

Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml” -Verbose}

The Applications event log is full of ESENT errors about a TileRepository being damaged and it can’t repair it, so I took backup and then deleted all files in C:\users\{username}\appdata\local\TileDataLayer\Database. Reboot and everything works fine again BUT you will lose your customisations and will be left with a blank start menu.

 

Other command: PowerShell -ExecutionPolicy Unrestricted -Command “& {$manifest = (Get-AppxPackage Microsoft.WindowsStore).InstallLocation + ‘\AppxManifest.xml’ ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}”

 

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Notifications and action center not working in Windows 10

Method 1: Run the SFC.

System File Checker is a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.

Follow the below steps:

  1. Right click on the Start button, click on Command Prompt (Admin).
  2. Type “sfc /scannow” without quotes and hit Enter.
  1. After the scan, restart the computer.
  2. Now check for the issue.

Method 2: Run the DISM Tool.

If the issue persists, I would have you run the DISM tool to check the system health and will try to restore the files.

  1. Right click on the Start button, click on Command Prompt (Admin).
  2. In the Administrator: Command Prompt window, type the following commands. Press the Enter key after each command:
    • DISM.exe /Online /Cleanup-image /Scanhealth 
    • DISM.exe /Online /Cleanup-image /Restorehealth

DISM /Online /Cleanup-Image /RestoreHealth /source:WIM:X:\Sources\Install.wim:1 /LimitAccess

  1. To close the Administrator: Command Prompt window, type Exit, and then press Enter.

Note: The tool might take 15-20 minutes to finish running, so please do not cancel it.