Abbassi Zied

🏠 Home | 🧩 Projects | 🧪 Mini-Projects | 📰 Posts

---

📰 Blog Post

📌 How to Set JAVA_HOME Manually on Windows 10

🗓️ Published: July 25, 2025

---

If you’re working with Java applications, setting the JAVA_HOME variable correctly is crucial. Here’s how to do it step by step:

🔍 Step 1: Find Your Java Installation Path

1. Open Command Prompt (press Win + R, type cmd, hit Enter)
2. Type this command and press Enter:

   where java
   

3. You’ll see paths like this:

   C:\Program Files\Java\jdk-21.0.2\bin\java.exe
   C:\SomeOtherPath\java.exe
   

4. Choose your main JDK path (e.g., C:\Program Files\Java\jdk-21.0.2).
   → Remove \bin\java.exe from the path!
   ✅ Correct path: C:\Program Files\Java\jdk-21.0.2

⚙️ Step 2: Set JAVA_HOME

1. Press Win + S and type “Environment Variables”
2. Select “Edit the system environment variables”
3. Click Environment Variables… at the bottom
4. Under System variables:
   • Click New…
   • Set:
     • Variable name: JAVA_HOME
     • Variable value: Your JDK path (from Step 1)
       Example: C:\Program Files\Java\jdk-21.0.2

🔄 Step 3: Update Your PATH

1. In the same Environment Variables window:
   • Find Path under System variables
   • Click Edit…
2. Click New and add:

   %JAVA_HOME%\bin
   

3. Click OK → OK → OK to close all windows.

✔️ Step 4: Verify the Setup

1. Close all open Command Prompt windows (important!).
2. Open a new Command Prompt.
3. Type:

   echo %JAVA_HOME%
   

   You should see your JDK path (e.g., C:\Program Files\Java\jdk-21.0.2).

4. Confirm Java works:

   java -version
   

   ⚠️ Troubleshooting Tips

   • If changes don’t apply: Restart your PC.
   • Double-check:
     • No bin in JAVA_HOME (use parent JDK folder!)
     • %JAVA_HOME%\bin exists in Path
   • Multiple Java installs? Delete unused versions to avoid conflicts.

Done! 🎉 Your Java environment is now set up correctly.

---