# Unknown file version

<figure><img src="https://2163635389-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlT4oo06dNP3aOVxQqDD9%2Fuploads%2Fgit-blob-e26132d9d23137198ab116f7d24a63d1e6500f1b%2Funknownfileversion.png?alt=media" alt=""><figcaption></figcaption></figure>

1. Reboot your PC.
2. Verify game files.

<figure><img src="https://2163635389-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlT4oo06dNP3aOVxQqDD9%2Fuploads%2Fgit-blob-b5de9696f64635d8b181a7718a3230fe1c3f3bd6%2FBBR_Validation.gif?alt=media" alt=""><figcaption><p>Right click on the game and press "Properties...", Select "Installed Files" tab and press "Verify integrity of game files".</p></figcaption></figure>