@SyLK the plutonium launcher requires windows 10.
-> https://forum.plutonium.pw/topic/6832/common-launcher-issues-solutions
Also you should use clean steam files.
-> https://forum.plutonium.pw/topic/531/how-to-install-plutonium-iw5
locking this for now, create a new topic if you experience further issues after upgrading to win10 and getting clean files.
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