Plutonium

Why don't you simply read the documentation?
When you go on the website there is a button where it says download and all the downloads are there
https://plutonium.pw/docs/install/#installing-the-dlcs-mw3

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@Husky1 what ivanovich_ said. I don't see how plutonium could be causing something like that, we don't modify any system files or settings that could somehow break your windows installation. Most likely caused by something else.

@Husky1 You won't get banned from Valorant just because you play Plutonium/Apex. You won't get banned from Plutonium just because you play Valorant/Apex. You won't get banned from Apex just because you play Plutonium/Valorant. You shouldn't be worried about that.