On this page, you will find more information about the most common causes and most relevant solutions for the Valorant error '45'. Do you need help straight away? Visit our support page.
The Riot Games documentation indicates that error code '45' is caused by the following problem: "Vanguard Reboot required.".
Do you think there is another cause for this error? Let others know in the comments.
Go ahead and restart the Riot Client. If the problem persists, uninstall Riot Vanguard, then restart VALORANT.
Do you still have problems with this error? Try one of the quick fixes below or leave a comment.