About:This is the V1.1 patch. It can only be used to patch V1.0 games to V1.1. Click on the download button near the top right of the page to start the download.
Once you have it downloaded, extract it using WinRar or 7zip and then go into the folder. Run it like a normal application and follow the prompts. It will then patch your game to V1.1.
Please note that if you want to play on our servers, you will need to further patch to V1.2 and then to V1.21. Likewise you will need to use a V1.21 no-cd patch. All of which can be found here: https://www.helloclan.eu/bfv/help/patches