"This module is blocked from loading into the Local Security Authority"

[Bob_Schor]

I'm gradually "upgrading" from Windows 10 to Windows 11 (not happy with the "improved" User Interface) and LabVIEW 2021 to LabVIEW 2024.  I have a "Work Laptop" that our IT Gurus updated from Windows 10 to Windows 11, which seemed to go well.  I have a separate Admin account that I use to install LabVIEW (IT doesn't know from LabVIEW), and I've recently done a "clean install" of LabVIEW 2024 Q3 (the version my colleague/supervisor is using), consisting of a full "uninstall" of all NI Software followed by an installation of LabVIEW 2024 Q3 (64-bit).  I have also made a similar "clean install" on my personal PC, still running Windows 10, but now only running LabVIEW 2024 Q3 (64-bit).

No problems (yet) on Personal PC.  However, Work PC sometimes (not sure what triggers this) pops up the message shown below.  I must confess when I press "Learn more", it takes me to a Microsoft page that has lots of gibberish.  I can confirm that I have the file C:\Program Files\National Instruments\Shared\mDNSResponder\nimdnsNSP.dll .

Because of the Shutdown, I haven't been doing much work, so haven't encountered this message more than maybe 3 times.  I've only been "playing with code", writing some test routines and such (all the hardware is back in the lab, so these are mostly simulation runs).  Has anyone else seen this message and understands how to fix it?

--- I just realized I should have noted where "Learn More" takes me -- as I (and others!) have mentioned on the Forum, "You can't easily debug a picture" ... my apology for my own stupidity.

Bob Schor

[Martin_Henz · Accepted solution]

see: https://forums.ni.com/t5/LabVIEW/Local-Security-Authority-LabView-2024-Q3/td-p/4394721/page/6

Install NI System Configuration 2025 Q2 or later.

[Bob_Schor]

Thanks for the link, Martin.  Also a "linked" thanks to Darren.  I'm not quite sure, but the link you posted took me into a reply I'd made within that earlier discussion ...

Bob Schor