Try a clean uninstall using the NI Measurement & Automation Explorer (MAX) uninstaller, then use a tool like Revo Uninstaller to remove residual registry keys. Reboot, then reinstall the drivers.
Unexpected PC shutdowns can corrupt active DLL files. How to Fix "nicaiu.dll Missing" (Safe Methods) nicaiu.dll download
It enables communication between high-level application code and low-level National Instruments hardware. Try a clean uninstall using the NI Measurement
If the error started recently after a software uninstall or Windows update: How to Fix "nicaiu
Open as Administrator (type "cmd" in the search box, right-click, and select "Run as administrator"). Type sfc /scannow and press Enter. Wait for the scan to finish and restart your computer. 3. Register the DLL File
: This DLL contains the DAQmx ANSI C functions needed for C-based applications.
Download the latest version of the NI driver relevant to your device (e.g., NI-DAQmx).