Installer Really Slow

I got a new computer and began to install league. I did the initial install but then it has to do the setup in the application. The first time I did this it went to 27% and crashed. I had to restart my computer, then I tried again. It has been over 4 hours since then and it is only at 71% it has been making slow progress and doesn’t show signs of stoping but it is incredibly frustrating. I’ve had no issues like this with other games. Does anyone know what the problem is and how I might be able to fix it?
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