Use Powershell to repair your taskbar right click issues.
Step 1: Right-click the Start button and select Command Prompt (Admin)
from the context menu.
Step 2: Type
Powershell in Command Prompt and press Enter.
Step 3: Paste the following text in the Powershell window and press
Enter.
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Wait for the command to run and ignore the red error prompts if they
arise. The Start Menu should be operational now.