Minecraft Forge Installer Not Opening on Windows [Best 8 Expert Fixes]

If you have difficulty opening the Minecraft Forge Installer on your Windows computer, note that you’re not alone! Not only that many Windows users have encountered this same issue, but they also have been unable to find a solution.

In this article, we will cover the best 8 expert fixes. This will help you get the Minecraft Forge Installer open and running on your Windows machine.

Why is the Minecraft Forge installer not opening?

When you look at it, there could be different reasons that may be responsible for the Minecraft Forge installer not opening on your PC. These reasons may include one or more of the following reasons highlighted below:

• Proper software to run it: The Forge installer is an executable file. Thus, your computer may not have the necessary Java software to run it.
• Blocked by software: Your firewall or antivirus software may block the Forge installer. Try disabling these programs and attempting to rerun the installer.
• Corrupted installer: Corrupted or incomplete Forge installer may be an issue.
• OS compatibility: The Forge installer may be incompatible with your operating system.
• Incorrect configuration: You must install and configure the Java Runtime Environment (JRE) correctly. This will help the Minecraft Forge installer to open.
• Missing files: Your computer might be missing essential system files or drivers needed to run the Minecraft Forge installer.
• RAM or Hard drive space: Your computer might not have enough RAM or hard drive space for the Minecraft Forge installer to open.

Now that we have identified problems let us identify solutions. Make sure you are committed in implementing these solutions.

Note that some of these solutions may come in handy if Minecraft Forge is not installing, the Forge installer is not working, or you cannot install Java Minecraft Forge.

What do I do if Minecraft Forge installer is not opening?

1. Reinstall Java

1. Press Windows + R to start the Run command, and enter appwiz.cpl in the text entry, and click OK or Enter.
   
2. Secondly, choose Java from the list of programs available, right-click on it, and click Uninstall.
   
3. After that, follow the on-screen instructions to complete the process.
4. Then, restart your PC.
5. Open the Java download page in a browser and click Download Java button.
   
6. Once the download is completed, open the Java installer package and follow the on-screen instructions to complete the installation.

2. Update Java to the latest version

1. Firstly, open the Minecraft Launcher app on your PC and click the drop-down menu next to the Play button.
   
2. Then choose the Latest release on the menu to update the game.
   
3. When you’re certain that your Minecraft game is the latest version, download the latest Forge version from the official website.

3. Uninstall Minecraft

1. Press Windows + R to start the Run command, and enter appwiz.cpl in the text entry, and click OK or Enter.
   
2. Secondly, choose Minecraft from the list of programs available, right-click on it, and click Uninstall.
   
3. After that, follow the on-screen instructions to complete the process.
4. Then navigate to %AppData%\.minecraft and delete the entire folder.
5. When that is done, open the Registry Editor (regedit.exe) by pressing the Windows key + R, enter regedit into the text box, and either click Ok or press Enter.
   
6. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall.
   
7. Find the Minecraft entry and delete it.
8. Then, restart your PC.

4. Disable Windows Defender Firewall

1. Firstly, press Windows + S together to start the Search menu, type Windows Defender Firewall in the text entry, and click on the relevant app.
   
2. Secondly, click on Turn Windows Defender Firewall on or off on the left pane.
   
3. Then click on the radio button for Turn off Windows Defender Firewall option for both Private network settings and Public network settings and click on OK to save the changes.
   
4. Once done, try installing Minecraft Forge with the firewall disabled.

5. Install Minecraft via PowerShell

1. Press Windows + E together to start File Explorer and go to the folder that stores the Minecraft Forge installer file.
   
2. Right-click the Minecraft Forge installer file, select Rename, and enter forge.JAR.
3. Hold the Space key, right-click anywhere within the folder that includes the forge.JAR file, and select Open PowerShell window here.
4. Next, input the PowerShell command and press Enter:
   java -Xnx2G -jar forge.jar
   

6. Check router range

1. If you are using a wireless router, ensure that the Wi-Fi is within range of your computer. The closer your PC is to the internet, the faster the speed.
2. When connected, confirm that the signal strength you see is at maximum. It works best that way.
3. In addition to the standard 2.4 GHz, dual-band routers support 5 GHz bandwidth, offering a higher Internet speed. If your router is in this category, ensure you connect to the 5GHz network.
   
4. If the internet still isn’t as responsive, click the Wi-Fi icon to turn off the router connection and click again to turn it on.

7. Update Windows

1. Click the Windows button on your keyboard or the Windows icon on your taskbar and then open Settings.
   
2. When opened, click and select Update & Security.
   
3. Select Windows Update and then click on Check for updates.
   
4. If updates are available, your computer will automatically download them.
5. When the download is completed, reboot your PC.
6. Check to see if the error appears after the updates.

Many users have found this beneficial if the Forge installer won’t open.

8. Run SFC scan to fix Minecraft Forge installer not opening

1. Begin by pressing the Windows key, enter cmd in the text entry, and select Run as administrator.
   
2. Now enter the following code and press Enter: 
   sfc /scannow
   
3. You must wait until the process is complete, as it may take a while.
4. The solution will automatically be applied when found.
5. Now, close the Command Prompt and restart your PC.

In conclusion, it appears that the Minecraft Forge Installer is not opening for various reasons. It could be due to a corrupted installation file, a missing prerequisite, or a variety of reasons we identified earlier.

To resolve this issue, use the fixes in this solution guide. Ensuring that all prerequisites are installed before attempting to rerun the application is also recommended.