Where to delete a game install that seemingly doesn't exist?

[Microsoft Windows]

Hello, I recently tried installing forza horizon 4 and left it installing for awhile. Then when I tried turning back on the computer, BSOD hapeend and caused a forced restart also causing my Forza horizon 4 installation to still take up space even though it doesn't exist anymore. Where to locate forza horizon 4 on my system and delete?

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