Run Powershell(x86) as an Administrator

Enter-PSSession -ComputerName LAP123 -Credential Labo\Admin

Get-AppvClientPackage -All

Unpublish-AppvClientPackage

PackageId

VersionId

Remove-AppVClientPackage

PackageId

VersionId

Don’t forget to remove the folder in the SCCMcache!
\\LAP123\c$\Windows\ccmcache\..