Please relaunch the client to restore anti-cheat function. Vanguard anti-cheat has encountered an error. Those errors have the following messages: Both of those issues are associated with Valorant’s Vanguard software. The Van9001 and Windows 11 Valorant anti-cheat errors are two of the most widely cited Valorant issues. However, since Windows 11, more players have reported errors arising for that game on Microsoft’s latest desktop platform. Valorant is still a relatively new first-person shooter multiplayer game for Windows 11/10. If the download or install size changes in any significant way, we’ll be sure to update this guide.Home › Windows 11 › How To › Fix Valorant’s Vanguard Windows 11 errors The game’s required file size can and very likely will continue to grow as the game evolves. It’s worth keeping in mind that Valorant is still receiving frequent updates.

The screenshot above was taken after a fresh install of both the game and Riot Vanguard on July 22, 2020. With all of these processes completed, Valorant will take up just under 9 GB of hard drive space. After first running the game, you’ll also have to agree to the terms of service. If you don’t, you’ll likely run into error code 57. Since the Vanguard anti-cheat system runs at the kernel level in Windows, you’ll need to restart your PC in order to finalize the installation. Once the Riot Client is up and running, it will begin to download Riot Vanguard and the Valorant game files, which together account for a 3.9 gigabyte download. It includes an option to pause and resume downloads, which is handy for those with slower internet speeds. Once installed, this second application will then download the rest of the game’s files. The Riot Client itself requires a 147.4 megabyte download. Once run, it will begin to download the Riot Client. This is a small program weighing just 65.8 megabytes. To get started, you need to download what’s called the Valorant game client. Valorant’s installation procedure is kind of a mess.

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