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March 14th, 2026 13:35
18 Area-51 AA18250, turned on IOMMU but still meet Riot Vanguard error
Hi I have been to this error for almost a week the vanguard told me to enabled the IOMMU in BIOS and I did every step that should do like the ss show but after that the error still there I will put all the ss I have here so maybe someone can help me to solve this problem.



Youmeingkids
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March 31st, 2026 13:51
Double-check BIOS IOMMU/VT-d settings, save & exit, then fully power off/on your PC, and reinstall Riot Vanguard from scratch.