This is a common issue with app volumes.
First:
Try re-register the Microsoft.Windows.ShellExperienceHost and Microsoft.Windows.Cortana AppX Packages:
In Powershell:
Get-AppXPackage -Name Microsoft.Windows.ShellExperienceHost | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Get-AppXPackage -Name Microsoft.Windows.Cortana | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
If that works, you can add those lines to shellstart.bat file using powershell.exe -command "....."
Secondly:
Also, take a look at this post. it suggests adding
"
Basically, you just need to add this line to the snapvol.cfg on your writable template and/or existing writable:
exclude_path=\ProgramData\Microsoft\Windows\AppRepository
"
Windows 10 Start menu stops working after Windows 10 LTSB 2016 March Cumulative Update
