LabVIEW Installer Hangs on NI Offline Help Viewer Step

Updated Oct 30, 2025

Reported In

Software

  • LabVIEW
  • Package Manager

Issue Details

When I try to install LabVIEW, the process gets stuck trying to install the NI LabVIEW Offline Manual / NI Offline Help Viewer. Several processes named NIOfflineHelpViewer.exe (in Windows Task Manager) are running during this time and the install hangs and never moves past this step. This can happen with both interactive installs and silent installs of LabVIEW.

 LabVIEW Installation stuck at step "Installing NI LabVIEW Offline Manual", NIOfflineHelpViewer

Solution

This is a known issue with several possible workarounds:

  • Terminate the NIOfflineHelpViewer.exe process using Task Manager (for interactive installs) or a custom script (for silent installs)
  • Deselect the "NI Offline Help Viewer" component in the installer (LabVIEW 2025 Q3 or later)
  • Delete the following file before running the installer: C:\ProgramData\National Instruments\Offline Help Viewer\database-orm\offline.sqlite

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