Product doesn't retry after failed self-upgrade

Hello.

I'm trying to install 

UnitymediaSicherheitspaketNetworkInstaller-NRWHessen.exe

on new Windows 10 notebook from HP Inc. using an admin account.

After accepting download of the installation assistent, installation fails.

Logfiles report "E: Installer::HandleUpgrade: Failed to launch self-upgrade: 740"

downloaded_files:
=================
2019-04-09 20:00:55.840 [2da8.35b4] I: (FILE) Success 'https://47796.spi.f-secure.com:443/packaging/services/spi/stubconfiguration?operatorId=47796&version=55' -> 'C:\Users\<edited>\AppData\Local\F-Secure\fs82930250.tmp\stubConfig.xml'0 retries) [HTTP 200][Win32 0] in 313ms (2636 bytes -> 8kB/s)
2019-04-09 20:00:56.288 [2da8.32cc] I: (FILE) Success 'https://download.sp.f-secure.com/SE/Unitymedia/latest/installer/UnityMedia.exe' -> 'C:\Users\<edited>\AppData\Local\F-Secure\fs82930250.tmp\UnitymediaSicherheitspaketNetworkInstaller-NRWHessenUpgrade.exe'0 retries) [HTTP 200][Win32 0] in 437ms (1729992 bytes -> 3958kB/s)

stub:
=====
2019-04-09 20:00:55.292 [06e4.06ec] I: *** LOGGING STARTED *** (UTC+2:00, session: 0x4)
2019-04-09 20:00:55.292 [06e4.06ec] I: Binary version: 3.06.180.0, compilation time: Feb 3 2016 13:31:28
2019-04-09 20:00:55.292 [06e4.06ec] I: InstallerExt:arseCommandLine: Command-line: "C:\Users\<edited>\Downloads\UnitymediaSicherheitspaketNetworkInstaller-NRWHessen.exe"

2019-04-09 20:00:55.370 [2da8.37fc] I: *** LOGGING STARTED *** (UTC+2:00, session: 0x4)
2019-04-09 20:00:55.370 [2da8.37fc] I: Binary version: 3.06.180.0, compilation time: Feb 3 2016 13:31:28
2019-04-09 20:00:55.370 [2da8.37fc] I: InstallerExt:arseCommandLine: Command-line: "C:\Users\<edited>\AppData\Local\Temp\fs82930156.tmp\UnitymediaSicherheitspaketNetworkInstaller-NRWHessen.exe" "C:\Users\<edited>\Downloads\UnitymediaSicherheitspaketNetworkInstaller-NRWHessen.exe" --nocopy
2019-04-09 20:00:55.386 [2da8.37fc] I: LanguageSelect:electLanguageFromEnvironment: User display language is 'German' (de-DE)
2019-04-09 20:00:55.386 [2da8.37fc] I: LanguageSelect:electLanguageFromEnvironment: Selected 'de' as the default language (score: 4)
2019-04-09 20:00:55.386 [2da8.37fc] I: LanguageSelect:electLanguageFromEnvironment: Language locked by score (threshold: 4)
2019-04-09 20:00:55.386 [2da8.37fc] I: WSACCommunication::IsSecurityInstalledAndActive: Querying security provider statuses...
2019-04-09 20:00:55.401 [2da8.37fc] I: WSACCommunication::IsSecurityInstalledAndActive: Computer is protected by security products
2019-04-09 20:00:55.417 [2da8.2070] I: CcfDownload::CcfDownloadInstance:etProxyAddress: Setting proxy to '<disabled>'
2019-04-09 20:00:55.840 [2da8.2070] I: Downloader:houldSelfUpgrade: Self-upgrade is needed, current: 3.06.180, available: 3.17.192
2019-04-09 20:01:04.136 [2da8.37fc] I: Installer::FinalizeDownload: Download finished, result = DownloadSuccess
2019-04-09 20:01:04.152 [2da8.1210] I: GuiManager:penDialog: Showing dialog type 0
2019-04-09 20:01:04.230 [2da8.1210] I: GuiManager:penDialog: Showing dialog type 8
2019-04-09 20:02:50.688 [2da8.37fc] I: Installer::HandleUpgrade: User accepted self-upgrade
2019-04-09 20:02:50.750 [2da8.37fc] *E: Installer::HandleUpgrade: Failed to launch self-upgrade: 740
2019-04-09 20:02:50.766 [2da8.1210] I: GuiManager:penDialog: Showing dialog type 4
2019-04-09 20:06:52.511 [2da8.1210] I: MsgLoopThread: Message loop exited
2019-04-09 20:06:52.511 [2da8.37fc] I: AdminHandler::Abort: Set abort signal
2019-04-09 20:06:52.511 [2da8.37fc] I: AdminHandler::Abort: Set abort signal
2019-04-09 20:06:52.527 [2da8.37fc] I: wWinMain: Exiting with code: 1 (Failed)
2019-04-09 20:06:52.527 [2da8.37fc] I: *** LOGGING ENDED ***
2019-04-09 20:06:52.542 [06e4.06ec] I: wWinMain: Secure copy finished: 1 (Failed)
2019-04-09 20:06:52.542 [06e4.06ec] I: *** LOG AUTO-CLOSED ***

stub_2:
=======
2019-04-09 20:01:04.152 [22c8.21d0] I: *** LOGGING STARTED *** (UTC+2:00, session: 0x4)
2019-04-09 20:01:04.152 [22c8.21d0] I: Binary version: 3.06.180.0, compilation time: Feb 3 2016 13:32:15
2019-04-09 20:06:52.511 [22c8.21d0] I: AdminInstaller::InstallationSequence: Cancel signal received
2019-04-09 20:06:52.511 [22c8.21d0] I: wWinMain: Exiting with code: 2
2019-04-09 20:06:52.511 [22c8.21d0] I: *** LOGGING ENDED ***

I looked for known problems -

https://community.f-secure.com/t5/Home-Security/TP133-Windows-Client-Release/m-p/68091/highlight/true
?04-03-2015 03:46 PM

Fixed issues
Common:

Product doesn't retry after failed self-upgrade (CTS-95981)

this should be fixed as product version is younger, right?

https://community.f-secure.com/t5/F-Secure-SAFE/Install-fails/m-p/113462#M20053

contains a hint about missing root cert's, will try the tip

"just type into your browser: https://download.sp.f-secure.com/ ."
to download root certificates later today.