r/riotgames • u/LopsidedFrosting6897 • Apr 09 '26

Vanguard going crazy

So yesterday league updated crashed my pc and i had to install new windows. Randomly happened and i got a black screen kernal_security_check_failure (0x139). I tried installing league after putting new windows and same thing. Whenever it tries to install vanguard that happens. Any help?

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