in reply to .exe created by a "pp" sticks on startup

What about entries in the event log? Might be Software Restriction Policies or Applocker. Both can disallow execution of binaries from user writable directories.
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Re^2: .exe created by a "pp" sticks on startup
by levW (Beadle) on Jul 11, 2019 at 06:08 UTC

    sure enough, I have started with Event logs - there was nothing there ...

      Sorry I misread the question, thought the processes are aborted. If it is "running"(crawling), maybe an Antivirus could be holding it up?

        Right, have eliminated this option to start with.Disabling the Windows Defender did not help me out..