PS C:\windows\system32> Get-AppxPackage -AllUsers -Name *Skype* | Remove-AppxPackage
PS C:\windows\system32> Get-AppxPackage -AllUsers -Name *Skype*


Name                   : Microsoft.SkypeApp
Publisher              : CN=Skype Software Sarl, O=Microsoft Corporation, L=Luxembourg, S=Luxembourg, C=LU
Architecture           : X64
ResourceId             :
Version                : 15.134.3202.0
PackageFullName        : Microsoft.SkypeApp_15.134.3202.0_x64__kzf8qxf38zg5c
InstallLocation        :
IsFramework            : False
PackageFamilyName      : Microsoft.SkypeApp_kzf8qxf38zg5c
PublisherId            : kzf8qxf38zg5c
PackageUserInformation : {S-1-5-18 [S-1-5-18]: Staged}
IsResourcePackage      : False
IsBundle               : False
IsDevelopmentMode      : False
NonRemovable           : False
IsPartiallyStaged      : False
SignatureKind          : Store
Status                 : Ok