optixu.1.dll: download the file and fix the error

32-bit (x86) NVIDIA OptiX Ray Tracing Utility Library Scanned by antivirus

optixu.1.dll is a file of the software NVIDIA OptiX Ray Tracing Utility Library (“NVIDIA OptiX Ray Tracing Utility Library”), published by NVIDIA Corp.. Version offered here: 3.0.0, 32-bit.

If this file is missing or damaged, the program that uses it does not start and Windows displays an error message. Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only optixu.1.dll

Ideal if only this file is reported missing: you replace a single file, without reinstalling anything.

⇓ Download optixu.1.dll .zip file: the DLL + its instructions · downloaded 1,909 times

Version: 3.0.0
Architecture: 32-bit (x86)
Size: 761.34 KB
Publisher: NVIDIA Corp.

Then:

Extract optixu.1.dll from the zip file and copy it to the folder of the program showing the error (where its .exe file is).
Still getting the error? Copy it to C:\Windows\SysWOW64 (64-bit Windows) or C:\Windows\System32 (32-bit Windows), then restart.

SHA-256: 7a4ed34fddea09891035c7984c1aa6c4bf4d45d65b6355c23638f631847ff343 · Check on VirusTotal · Product: NVIDIA OptiX Ray Tracing Utility Library

Method 2 ·complete · depends on the program

Reinstall the program that shows the error

The program normally provides optixu.1.dll itself, in the exact version it expects. Recommended if several files are missing or if the error comes back.

Settings › Apps › Installed apps: uninstall the program or game concerned.
Reinstall it from its original setup program, then restart your computer.

Error messages related to optixu.1.dll

The program can't start because optixu.1.dll is missing.
Error loading optixu.1.dll. The specified module could not be found.
Failed to load optixu.1.dll

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