How do I install Forge on Windows?

Original query: "install Forge windows"

Asked on May 2, 2026

Installing Forge on Windows is a straightforward process, but you must download the correct installer for the Minecraft version you want. Before you start, confirm you have Java installed and know which Minecraft version you will mod. Then you run the Forge installer and select the correct Minecraft profile so the game launches with Forge. Finally, verify the installation by starting Minecraft and checking that Forge appears in the version/profile list.

🏆 Main Sources

Official Forge Downloads files.minecraftforge.net

Minecraft Wiki: Forge Installation & Info minecraft.wiki

Step 1: Prepare prerequisites

Check your Minecraft version (e.g., 1.20.1). Forge must match this version.
Install Java (Forge requires Java to run). If you already play Minecraft, Java is usually already set up, but confirm it if you encounter errors.
Back up your saves if you are going to experiment with mods (optional but recommended).

Step 2: Download the correct Forge installer

Go to the official Forge download page, choose the Minecraft version, and download the Installer file (it will typically be a .jar file). Make sure you do not download a “universal” or unrelated file type—use the installer intended for your Minecraft version.

Step 3: Run the Forge installer

Once the download completes:

Locate the downloaded .jar file in your Downloads folder.
Double-click it. If Windows doesn’t recognize it, right-click the file > Open with > choose Java (or your Java runtime).
In the Forge installer window, select Install client.
Click OK to install.

Step 4: Launch Minecraft with the Forge profile

After installation:

Open the Minecraft Launcher.
On the main screen, find the Installations tab.
Create or select the Forge installation profile (it may appear automatically after running the installer).
Start the game and confirm Forge loads successfully.

Step 5: Verify Forge is working

When Minecraft loads, look for Forge-related information in the main menu or the game log. If Forge fails to load, it is usually due to a version mismatch, missing Java, or an incorrect installer.

Common troubleshooting

“Could not find or load main class”: Java is missing or the Java path is incorrect.
Game crashes immediately: The Forge version may not match your Minecraft version.
Mods not loading: Ensure you placed mods into the correct mods folder for the Forge profile.

Where mods go (quick reference)

Mods for Forge typically go into: %appdata%\.minecraft\mods. If you use a different Minecraft directory or launcher profile, the path may differ.

Do you want help with your exact Minecraft version?

If you tell me your Minecraft version (e.g., 1.20.1) and whether you want Forge for single-player or a server, I can point you to the correct installer and the exact steps for your setup.