How to Create an INI File in Windows 11: A Step-by-Step Guide

Ever seen a program ask you to tweak or create an INI file and thought, What on earth is that? Don’t worry—you’re not alone! An INI file might sound complicated, but it’s actually just a plain text file with configuration settings that many applications and games use.

In this guide, I’ll walk you through exactly how to create an INI file in Windows 11, plus explain why it matters, common mistakes to avoid, and a few practical tips.

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What Is an INI File?

An INI file is a simple text-based configuration file. The name comes from “Initialization.”

• Format: Sections are defined in square brackets [ ], with settings written as key-value pairs.

• Example:

  [Settings]
Resolution=1920x1080
Fullscreen=1
Volume=75


This makes it easy for both people and software to read.

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Why Are INI Files Important?

• Store settings for applications and games.

• Easy to edit manually without coding knowledge.

• Used for troubleshooting and customization.

• Lightweight and universally recognized by many programs.

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Method 1: Create an INI File Using Notepad

The simplest way to create an INI file is with Notepad.

Steps

1. Right-click on your desktop.

2. Select New > Text Document.

3. Rename the file to config.ini (replace “config” with your preferred name).

4. Double-click to open it in Notepad.

5. Add your desired content, e.g.:

   [UserPreferences]
Theme=Dark
Language=English
AutoSave=1


6. Save the file.

That’s it! You’ve made your first INI file.

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Method 2: Create an INI File Using Notepad++

Notepad++ offers better formatting and syntax highlighting.

Steps

1. Install Notepad++ (free).

2. Open the program.

3. Create a new file.

4. Write your configuration content.

5. Go to File > Save As.

6. Change Save as type to All Files.

7. Name it settings.ini.

Now you’ve got a polished INI file.

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Method 3: Convert a TXT File to INI

If you already have a .txt file with settings, you can easily convert it.

Steps

1. Right-click the .txt file.

2. Select Rename.

3. Change the extension from .txt to .ini.

4. Confirm when Windows asks for confirmation.

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How to Enable File Extensions in Windows 11

Sometimes you won’t see .txt or .ini because Windows hides extensions.

Steps

1. Open File Explorer.

2. Click View > Show > File name extensions.

3. Now you can rename files properly.

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Basic Structure of an INI File

INI files use a simple structure:

• Sections: [SectionName]

• Keys: Key=Value

• Comments: Start with ;

Example

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Editing an Existing INI File

1. Right-click the INI file.

2. Choose Open with > Notepad (or Notepad++).

3. Modify the values.

4. Save the file.

⚠️ Tip: Always back up the original INI file before editing!

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Common Mistakes When Creating INI Files

• Forgetting to use square brackets for sections.

• Using spaces in Key=Value pairs incorrectly.

• Saving as config.ini.txt instead of config.ini.

• Not enabling file extensions in File Explorer.

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When Do You Need an INI File?

• Customizing game settings.

• Setting up server configurations.

• Adjusting software preferences.

• Debugging errors when an app won’t launch.

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Tips for Writing Clean INI Files

• Use clear section names ([Graphics], [Sound]).

• Stick to simple key-value pairs.

• Use comments (;) to explain settings.

• Keep a backup copy of your configuration.

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Advanced Use: Automating INI File Creation with PowerShell

You can even create an INI file using a script.

Example PowerShell Script:

This generates an INI file instantly.

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INI Files vs. Other Configuration Files

• INI: Easy, human-readable, lightweight.

• XML: More structured but verbose.

• JSON: Modern, widely used in web apps.

INI files are still popular because they’re quick and simple.

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Troubleshooting INI File Issues

• Program not reading the file? → Check if it’s named correctly.

• Errors in game settings? → Look for typos in key-value pairs.

• File won’t save? → Make sure you’re editing with admin rights.

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Conclusion

Creating an INI file in Windows 11 is straightforward—you can use Notepad, Notepad++, or even convert a TXT file. Once you get the hang of the structure, you’ll find INI files are powerful tools for customizing and troubleshooting software.

Whether you’re editing game settings, adjusting software preferences, or just experimenting, knowing how to create an INI file gives you extra control over your PC.

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FAQs

Q1: Can I create an INI file on Windows 11 without extra software?
Yes, you can use the built-in Notepad app.

Q2: What should I use to edit INI files?
Notepad works fine, but Notepad++ gives better readability.

Q3: Why does my INI file save as .ini.txt?
Because Windows hides extensions—enable “File name extensions” in File Explorer.

Q4: Can I break my program by editing an INI file?
Yes, if you use invalid values. Always back up before editing.

Q5: Are INI files still used today?
Yes—especially in games, apps, and older software that prefer lightweight configs.