Hi Francesco,
I'm Dyari. Thanks for reaching out. I will be happy to assist you in this regard.
The minidump files indicate vgk.sys as a cause of the BSOD which is related to the Riot Vanguard anti-cheat component for Valiant.
If you have it installed on your computer, kindly uninstall it and check to see if your computer is stable. Then you can download and install a stable version.
https://support-valorant.riotgames.com/hc/en-us...
Please feel free to ask if you need further assistance.
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