Client does not start on Windows 10 Pro

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    I have installed ‘nomachine 8.10.1_1’ on my Windows 10 Pro laptop but when I use the link to run “C:\Program Files\NoMachine\bin\nxplayer.exe” nothing happens in the GUI.

    The laptop is running Trend Micro Security Agent which is managed by the organization I belong to. I have installed other software without issues, but I am wondering if this could be blocking NoMachine.

    I did install the latest version (twice!) and rebooted the machine.

    Any help/suggestions is appreciated.



    Can you check if you’ve a file called nxtrace.log in %PROGRAMDATA%\NoMachine\var\log and send it to forum[at]nomachine[dot]com?
    If this file doesn’t exist, after you try to start the Player check if there is a NoMachine Player process running in your task manager.


    Thanks, the log is there.  It is filled with this message:

    Sat Jan 13 17:39:49 2024



    Module: C:\Program Files\NoMachine\bin\nxserver.bin pid 17660


    Thread: 5308 exception 0xc0000005, ‘Access violation’


    In: C:\Windows\SYSTEM32\ntdll.dll at 0x6aac1548


    Error: Invalid read from address 0x1654


    #0  0x000000006aac1548 ntdll.dll(RtlVirtualUnwind)

    #1  0x000000006aac1040 ntdll.dll(RtlVirtualUnwind)

    #2  0x000000006aac0e7b ntdll.dll(RtlVirtualUnwind)

    #3  0x0000000069f01048 KERNEL32.DLL(RtlVirtualUnwind)

    #4  0x0000000059a80c85 TmUmEvt64.dll


    The Task Manager has entries for:

    NoMachine Device Server

    NoMachine Node Process

    NoMachine NX Server

    NoMachine Server Process

    NoMachine Tray Monitor


    That TmUmEvt64.dll crashing is related to Trend Micro (AMSP UMH module), but the stack you pasted is about nxserver binary, so from the info you supplied I can’t confirm Trend Micro is also having problems with the NoMachine client.
    Do you have a way to add a temporary exception for nxplayer.bin and nxplayer.exe, or a way to check a log of Trend Micro to look for messages related to NoMachine binaries?



    Thanks for your help. Unfortunately the Trend Micro app is managed by the company IT department, so I am afraid I can’t disable it. I will contact them and see if there is anything they can do.

    Thanks again.

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