link - https://optifine.net/downloads I'll show you how to download and install OptiFine for Minecraft 1.21.1 First, follow the link below the video. This is the official website of OptiFine. Here we download the version for 1.21.1 Wait 5 seconds and click the skip here. And download again. Open the file. And click install. That's it, now just launch Minecraft with OptiFine. And as you can see, all the settings are in place. You can also install shader packs. Thank you for watching. Goodbye.