Source: https://github.com/Gourieff/sd-webui-reactor#insightfacebuild
Insightface wheel.
Use when you cannot build insightface for some reason, or do not want to install c++ build tool.

Steps:
Close (stop) your SD WebUI Server if it's running
Download and put prebuilt Insightface package
https://github.com/Gourieff/Assets/raw/main/Insightface/insightface-0.7.3-cp310-cp310-win_amd64.whl
into the stable-diffusion-webui (or SD.Next) root folder where you have "webui-user.bat" file or (A1111 Portable) "run.bat"
From stable-diffusion-webui (or SD.Next) root folder run CMD and .\venv\Scripts\activate
OR
(A1111 Portable) Run CMD
Then update your PIP: python -m pip install -U pip
OR
(A1111 Portable)system\python\python.exe -m pip install -U pip
Then install Insightface: pip install insightface-0.7.3-cp310-cp310-win_amd64.whl
OR
(A1111 Portable)system\python\python.exe -m pip install insightface-0.7.3-cp310-cp310-win_amd64.whl