I been having this issue for a long time
Yesterday (20/01) morning I downloaded Riot Games and installed Valorant, I tried to start it and it showed me the VAN 9003 error. So, I did everything it asked me:
enabling TPM, put it on 2 dot 0 since it's mandatory on W11;
enabling UEFI, I switched to LEGACY + UEFI to UEFI;
enabling Secure Boot after I switched Windows 7 something to Disabled and Windows 8 something to Enabled
then I restored factory key (i dont remember the exact voice of it)
From here, I fixed VAN 9003
This afternoon, I tried to play Valorant after rebooting my PC 12 times today, and I had no issue logging in, but when I push the PLAY button it crashes and gives me the 9001 error, telling me I need TPM v2 dot 0
I do have TPM 2 dot 0 on my BOOT settings, but it doesn't show up on tpm msc