Norton 360 is Utilizing the GPU Again?!?

Norton 360 for Windows
2

I found a workaround on Reddit that seems to eliminate the GPU usage by model_host.exe. I don’t fully understand why. I’m also not sure if there are risks associated with it that aren’t immediately apparent. But it seems to works for me. Norton 360 is functioning “normally”. Your mileage may vary.

Source: nortonui.exe runs on my NVidia GPU : r/NortonAntiVirus

  1. Open Norton 360 > Settings > General > Temporarily disable Tamper Protection

  2. In Task Manager > Details > right-click on nortonui.exe > Properties > Compatibility tab > check “Run this program in compatibility mode for:” Windows 8 > Apply > OK

  3. Re-enable Tamper Protection

  4. Restart

Note: Repeat this procedure every time Norton 360 updates.

Although this modifies compatibility for the nortonui.exe process, doing so results in model_host.exe no longer using the GPU when Edge is active.

Edited to add: Okay. I missed the last step, “Restart”. I just did that. And now the model_host.exe Norton Antivirus processes that use the GPU no longer show up in Task Manager at all. I’m not sure if that is a good or bad thing. So I’m reverting the change for now.

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