Exchange lässt nicht CU7 UM Language Pack deinstallieren

[06.28.2017 15:28:14.0213] [1] [ERROR] The following error was generated when "$error.Clear();   
          uninstall-MsiPackage -ProductCode $RoleProductCode -LogFile $RoleLogFilePath -PropertyValues ("ESE=1");  

          $lochost=hostname;
          $exchsrv=Get-ExchangeServer -Identity $lochost -DomainController $RoleDomainController;
          if (-not $exchsrv.IsMailboxServer)
          {
            uninstall-MsiPackage -ProductCode $RoleTeleProductCode -LogFile $RoleLogFilePath;
          }

          if ( $RoleTransProductCode -ne [system.guid]::empty )
          {
            uninstall-MsiPackage -ProductCode $RoleTransProductCode -LogFile $RoleLogFilePath;
          }

          uninstall-MsiPackage -ProductCode $RoleTtsProductCode -LogFile $RoleLogFilePath;
        " was run: "Microsoft.Exchange.Configuration.Tasks.TaskException: Couldn't remove product with code 8ef42e64-6de1-47e6-a07f-0e77b83f98a6. This action is only valid for products that are currently installed. Error code is 1605. ---> System.ComponentModel.Win32Exception: This action is only valid for products that are currently installed  
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object target, String helpUrl)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.RemoveProductCode(Guid productCode)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePipelineIfFailed)".  
[06.28.2017 15:28:14.0213] [1] [ERROR] Couldn't remove product with code 8ef42e64-6de1-47e6-a07f-0e77b83f98a6. This action is only valid for products that are currently installed. Error code is 1605.  
[06.28.2017 15:28:14.0213] [1] [ERROR] This action is only valid for products that are currently installed
[06.28.2017 15:28:14.0213] [1] 1.  ErrorRecord: Couldn't remove product with code acfcc7b5-c028-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605.  
[06.28.2017 15:28:14.0213] [1] 1.  ErrorRecord: Microsoft.Exchange.Configuration.Tasks.TaskException: Couldn't remove product with code acfcc7b5-c028-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605. ---> System.ComponentModel.Win32Exception: This action is only valid for products that are currently installed  
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object target, String helpUrl)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.RemoveProductCode(Guid productCode)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePipelineIfFailed)
[06.28.2017 15:28:14.0213] [1] [ERROR] The following error was generated when "$error.Clear();   
          uninstall-MsiPackage -ProductCode $RoleProductCode -LogFile $RoleLogFilePath -PropertyValues ("ESE=1");  

          $lochost=hostname;
          $exchsrv=Get-ExchangeServer -Identity $lochost -DomainController $RoleDomainController;
          if (-not $exchsrv.IsMailboxServer)
          {
            uninstall-MsiPackage -ProductCode $RoleTeleProductCode -LogFile $RoleLogFilePath;
          }

          if ( $RoleTransProductCode -ne [system.guid]::empty )
          {
            uninstall-MsiPackage -ProductCode $RoleTransProductCode -LogFile $RoleLogFilePath;
          }

          uninstall-MsiPackage -ProductCode $RoleTtsProductCode -LogFile $RoleLogFilePath;
        " was run: "Microsoft.Exchange.Configuration.Tasks.TaskException: Couldn't remove product with code acfcc7b5-c028-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605. ---> System.ComponentModel.Win32Exception: This action is only valid for products that are currently installed  
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object target, String helpUrl)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.RemoveProductCode(Guid productCode)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePipelineIfFailed)".  
[06.28.2017 15:28:14.0213] [1] [ERROR] Couldn't remove product with code acfcc7b5-c028-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605.  
[06.28.2017 15:28:14.0213] [1] [ERROR] This action is only valid for products that are currently installed
[06.28.2017 15:28:14.0213] [1] [ERROR-REFERENCE] Id=UmLanguagePackComponent___98c7f337c1334ef59c2ac59e52813c16 Component=EXCHANGE14:\Current\Release\Client Access\Unified Messaging
[06.28.2017 15:28:14.0213] [1] Setup is stopping now because of one or more critical errors.
[06.28.2017 15:28:14.0213] [1] Finished executing component tasks.
[06.28.2017 15:28:14.0275] [1] Ending processing remove-umlanguagepack
[06.28.2017 15:28:14.0275]  CurrentResult console.ProcessRunInternal:198: 1
[06.28.2017 15:28:14.0275]  CurrentResult launcherbase.maincore:90: 1
[06.28.2017 15:28:14.0275]  CurrentResult console.startmain:52: 1
[06.28.2017 15:28:14.0275]  CurrentResult SetupLauncherHelper.loadassembly:452: 1
[06.28.2017 15:28:14.0275]  The Exchange Server setup operation didn't complete.  More details can be found in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder.  
[06.28.2017 15:28:14.0291]  CurrentResult main.run:235: 1
[06.28.2017 15:28:14.0291]  CurrentResult setupbase.maincore:396: 1
[06.28.2017 15:28:14.0291]  End of Setup
[06.28.2017 15:28:14.0291]  **********************************************

Welcome to Microsoft Exchange Server 2013 Cumulative Update 7 Unattended Setup
UM Language Pack for de-DE

Performing Microsoft Exchange Server Prerequisite Check


Configuring Microsoft Exchange Server

    UM language pack for (de-DE)                                                                      FAILED
     The following error was generated when "$error.Clear();  
          uninstall-MsiPackage -ProductCode $RoleProductCode -LogFile $RoleLogFilePath -PropertyValues ("ESE=1");  

          $lochost=hostname;
          $exchsrv=Get-ExchangeServer -Identity $lochost -DomainController $RoleDomainController;
          if (-not $exchsrv.IsMailboxServer)
          {
            uninstall-MsiPackage -ProductCode $RoleTeleProductCode -LogFile $RoleLogFilePath;
          }

          if ( $RoleTransProductCode -ne [system.guid]::empty )
          {
            uninstall-MsiPackage -ProductCode $RoleTransProductCode -LogFile $RoleLogFilePath;
          }

          uninstall-MsiPackage -ProductCode $RoleTtsProductCode -LogFile $RoleLogFilePath;
        " was run: "Microsoft.Exchange.Configuration.Tasks.TaskException: Couldn't remove product with code 8ef42e64-6de  
1-47e6-a07f-0e77b83f98a6. This action is only valid for products that are currently installed. Error code is 1605. --->
System.ComponentModel.Win32Exception: This action is only valid for products that are currently installed
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object ta
rget, String helpUrl)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.RemoveProductCode(Guid productCode)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePip
elineIfFailed)".  

     The following error was generated when "$error.Clear();  
          uninstall-MsiPackage -ProductCode $RoleProductCode -LogFile $RoleLogFilePath -PropertyValues ("ESE=1");  

          $lochost=hostname;
          $exchsrv=Get-ExchangeServer -Identity $lochost -DomainController $RoleDomainController;
          if (-not $exchsrv.IsMailboxServer)
          {
            uninstall-MsiPackage -ProductCode $RoleTeleProductCode -LogFile $RoleLogFilePath;
          }

          if ( $RoleTransProductCode -ne [system.guid]::empty )
          {
            uninstall-MsiPackage -ProductCode $RoleTransProductCode -LogFile $RoleLogFilePath;
          }

          uninstall-MsiPackage -ProductCode $RoleTtsProductCode -LogFile $RoleLogFilePath;
        " was run: "Microsoft.Exchange.Configuration.Tasks.TaskException: Couldn't remove product with code acfcc7b5-c02  
8-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605. --->
System.ComponentModel.Win32Exception: This action is only valid for products that are currently installed
   --- End of inner exception stack trace ---
   at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object ta
rget, String helpUrl)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.RemoveProductCode(Guid productCode)
   at Microsoft.Exchange.Management.Deployment.UninstallMsi.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__b()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePip
elineIfFailed)".  


The Exchange Server setup operation didn't complete. More details can be found in ExchangeSetup.log located in the  
<SystemDrive>:\ExchangeSetupLogs folder.
[PS] C:\Windows\system32>

[06.28.2017 15:28:14.0166] [2] Removing MSI package with code 'acfcc7b5-c028-40ae-a5f5-9778b41f22a2'.  
[06.28.2017 15:28:14.0197] [2] [ERROR] Couldn't remove product with code acfcc7b5-c028-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605.  
[06.28.2017 15:28:14.0197] [2] [ERROR] This action is only valid for products that are currently installed
[06.28.2017 15:28:14.0197] [2] [ERROR] Couldn't remove product with code acfcc7b5-c028-40ae-a5f5-9778b41f22a2. This action is only valid for products that are currently installed. Error code is 1605.  
[06.28.2017 15:28:14.0197] [2] [ERROR] This action is only valid for products that are currently installed
[06.28.2017 15:28:14.0213] [2] Ending processing uninstall-MsiPackage
[06.28.2017 15:28:14.0213] [1] The following 2 error(s) occurred during task execution:
[06.28.2017 15:28:14.0213] [1] 0.  ErrorRecord: Couldn't remove product with code 8ef42e64-6de1-47e6-a07f-0e77b83f98a6. This action is only valid for products that are currently installed. Error code is 1605.  
[06.28.2017 15:28:14.0213] [1] 0.  ErrorRecord: Microsoft.Exchange.Configuration.Tasks.TaskException: Couldn't remove product with code 8ef42e64-6de1-47e6-a07f-0e77b83f98a6. This action is only valid for products that are currently installed. Error code is 1605. ---> System.ComponentModel.Win32Exception: This action is only valid for products that are currently installed  
   --- End of inner exception stack trace ---