Lightroom Classic install stalls at 44%

I try to install Lightroom Classic but it always stops at 44%. In the log-files I see no errors.

install.log end like this:

01/25/20 17:41:32:627 | [INFO] | 6180 | HDSetup | HDSetup | AppContext |  | HDSetup | 9112 | ************************* START Adobe Setup *************************
01/25/20 17:41:32:627 | [INFO] | 6180 | HDSetup | HDSetup | AppContext |  | HDSetup | 9112 | Adobe Setup Version: 5.0.0.354
01/25/20 17:41:32:627 | [INFO] | 6180 | HDSetup | OOBEUtils | CommandLineParser |  | OOBEUtils | 9112 | Parsing the command line provided. Number of command line arguments is 2
01/25/20 17:41:35:600 | [INFO] | 6180 | HDSetup | HDPIM | HDPIMSessionManager |  | HDPIM | 6792 | Inside hdpimCreateSession
01/25/20 17:41:35:600 | [INFO] | 6180 | HDSetup | HDPIM | HDPIMSessionManager |  | HDPIM | 6792 | Entering into 'createHDPIMSession'
01/25/20 17:41:35:601 | [INFO] | 6180 | HDSetup | HDPIM | HDPIMSessionManager |  | HDPIM | 6792 | new session '{97C31A57-7A83-4FC4-9422-BA50E848D610}' created
01/25/20 17:41:35:601 | [INFO] | 6180 | HDSetup | HDPIM | HDPIMSessionManager |  | HDPIM | 6792 | Exiting hdpimCreateSession, new session ID is '{97C31A57-7A83-4FC4-9422-BA50E848D610}'
01/25/20 17:41:35:669 | [INFO] | 6180 | HDSetup | HDPIM | HDPIMSessionManager |  | HDPIM | 6792 | Inside hdpimInstallProduct with request <DriverInfo><ProductInfo><SAPCode>LTRM</SAPCode><CodexVersion>9.1</CodexVersion><Platform>win64</Platform><BuildVersion>9.1.0.201911291132</BuildVersion><BuildGuid>2718874d-9cea-49e3-b518-342e793f2ed5</BuildGuid></ProductInfo><RequestInfo><ClientWorkingDirectory>C:\Users\xxx\AppData\Local\Temp\{90CE2752-2537-4E3D-8DA1-6F827ECD07E6}</ClientWorkingDirectory><InstallLanguage>de_DE</InstallLanguage><InstallDir></InstallDir><x-api-key>CreativeCloud_v5_0</x-api-key><prefMigration>FALSE</prefMigration><PreserveInstallData>true</PreserveInstallData><ConflictXML>C:\Users\xxx\AppData\Local\Temp\{90CE2752-2537-4E3D-8DA1-6F827ECD07E6}\{996F86E3-5EBF-4F28-A980-573E574E9E57}</ConflictXML><workflowType>install</workflowType></RequestInfo></DriverInfo>
 
01/25/20 17:41:35:673 | [INFO] | 6180 | HDSetup | HDPIM | HDPIMSessionManager |  | HDPIM | 6792 | Exiting hdpimInstallProduct with status '0'
01/25/20 17:41:36:924 | [INFO] | 6180 | HDSetup | OOBEUtils | FileUtils |  | OOBEUtils | 7376 | Successfully deleted directory from path: C:\Users\xxx\AppData\Local\Temp\ETRCB8E.tmp. Recursive: 1
01/25/20 17:41:36:925 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | Populating install data from Application JSON
01/25/20 17:41:36:930 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | Sanitizing data for product-'Lightroom Classic'
01/25/20 17:41:36:930 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | HD Packager Version-'3.0.43'
01/25/20 17:41:37:029 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | Acquired product specific lock for SAPCode: LTRM
01/25/20 17:41:37:031 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | Final Install Directory for the workflow is C:\Program Files\Adobe
01/25/20 17:41:37:032 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | Sorting packages to install
01/25/20 17:41:37:034 | [INFO] | 6180 | HDSetup | HDPIM | ApplicationManager |  | HDPIM | 7376 | Package (Name: AdobeLightroom-mul Version: 9.1.0.201911291132) selected for install
01/25/20 17:41:37:118 | [INFO] | 6180 | HDSetup | HDPIM | WorkFlowManager |  | HDPIM | 7376 | Win32 Runtimes to install: VC10,VC11,VC12,VC14,VC14.1
01/25/20 17:41:37:118 | [INFO] | 6180 | HDSetup | HDPIM | WorkFlowManager |  | HDPIM | 7376 | Win64 Runtimes to install: VC10,VC11,VC12,VC14,VC14.1
01/25/20 17:41:38:696 | [INFO] | 6180 | HDSetup | HDPIM | WorkFlowManager |  | HDPIM | 7376 | Successfully executed runtime installer custom hook exe from path C:\Program Files (x86)\Common Files\Adobe\Adobe Desktop Common\Runtime\customhook\RuntimeCustomHook.exe with return code 0
01/25/20 17:41:38:696 | [INFO] | 6180 | HDSetup | HDPIM | TaskManager |  | HDPIM | 4356 | Starting 'DOWNLOAD' task for Package (Name: AdobeLightroom-mul Version: 9.1.0.201911291132)
01/25/20 17:41:38:700 | [INFO] | 6180 | HDSetup | HDPIM | DownloadManager |  | HDPIM | 4356 | Package (Name: AdobeLightroom-mul Version: 9.1.0.201911291132) Download info - DownloadSize: 1123958243, DownloadPath:'C:\Users\xxx\AppData\Local\Temp\ETRD766.tmp'
01/25/20 17:41:38:702 | [INFO] | 6180 | HDSetup | HDPIM | DownloadManager |  | HDPIM | 4356 | Enabling Bluestreak download for LTRM
01/25/20 17:41:38:703 | [INFO] | 6180 | HDSetup | HDPIM | DownloadManager |  | HDPIM | 4356 | Changing thread count to 40 for LTRM

What can I do to fix this problem?

Thankx in advance