OptiFine 1.17.1 is a popular Minecraft optimization mod that not only increases the game’s performance but it also lets you add shaders and texture packs. This MC optimization tool can boost & control FPS, configurable animations & details, faster math, and huge support for shaders and texture packs/resource packs.
However, you can download OptiFine’s latest version which perfectly supports Minecraft 1.20.1 and is also fully compatible with Forge 47.1.43. But if you are playing minercraft older version then OptiFine 1.17.1 is the best option.
You can use Optifine with Forge, Fabric, PojavLauncher, and TLauncher easily. Though the steps to download, install, and use vary, it works.
- Devs: sp614x
- Version: 1.17.1
- File Size: 6.1 MB
- License: Free
- Updated: Nov, 4, 2021
- Requirements: Windows 11/10 PC + Forge 37.0.103
Currently, three versions of Optifine 1.17.1 download are available. i.e. OptiFine HD U H2 pre1, OptiFine HD U H1, OptiFine HD U G9. All of them run perfectly fine with the Forge 37.0.103 download.
How to Download & Install OptiFine 1.17.1
Before you download OptiFine 1.17.1 make sure you have already downloaded Minecraft Java edition and Oracle Java on your Windows 10/11 PC.
After that follow this guide to download and install Optifine on Windows PC.
In case you can’t open the OptiFine 1.17.1 Installer then don’t worry. This issue can occur if you have an incorrect file or missing Java’s latest version. Follow this guide to fix can’t open the OptiFine installer issue.
How To Install OptiFine 1.17.1 With CurseForge
Adding OptiFine 1.17. 1 to CurseForge is a unique way of installing it, as it requires integration into a modpack to function correctly within Minecraft.
Here’s how you can install OptiFine 1.17.1 in a CurseForge modpack:
Step 1: In the Curseforge launcher go to the My Modpacks tab and select the modpack you wish to add Optifine to.
Step 2: Click on the three dots next to the Play button in the modpack and from the drop-down menu click on Open Folder.
Step 3: Place the supported version of the OptiFine mod (by the modpack) into the mods folder.
You can now use Optifine with the Curseforge launcher, launch the game, and head over to Video Settings to see if Optifine is working.
Note: OptiFine may not appear in the list of mods within the modpack since it was manually installed. To confirm that it’s working, you can check Minecraft’s Video Settings. If OptiFine is active and functioning correctly, you should see its options and settings available in the Video Settings menu.
How to Download and Install OptiFine 1.17.1 with Forge?
To download and install OptiFine 1.17.1 with Forge in Minecraft, follow these steps:
Step 1: Download OptiFine
- First, you need to download OptiFine 1.17.1.
Step 2: Move the OptiFine Installer
- Instead of running the OptiFine installer, move it to the “mods” folder inside your Minecraft Java Edition’s installation directory.
- You can typically find the Minecraft installation directory at: “Local Disk (C:) > Users > (Your PC Name) > AppData > Roaming > .minecraft > mods”.
How to Use OptiFine 1.17.1 in Minecraft Java?
Once you have installed OptiFine you can tweak things to improve performance. Like if you are dealing with Minecraft FPS down or lagging you can fix it. Just follow our comprehensive guide on how to use Optifine.