Nothing ruins game night faster than a scary error message about dinput8.dll or xinput1_4.dll. You double-click your favorite game… and boom. “The code execution cannot proceed because dinput8.dll was not found.” Or maybe it says the file is blocked. Annoying? Yes. The end of the world? Not even close.

These two tiny files are part of Microsoft’s DirectX system. They help your games talk to your keyboard, mouse, or controller. When they are missing, blocked, or corrupted, your game simply refuses to cooperate.

TL;DR: If dinput8.dll or xinput1_4.dll is blocked, first check Windows Security and unblock the file in Properties. Then reinstall or repair DirectX and the game. Avoid downloading random DLL files from sketchy websites. Restart your PC after every major fix and you’ll likely solve the issue fast.

What Are dinput8.dll and xinput1_4.dll?

Let’s make this simple.

• dinput8.dll = DirectInput. Handles keyboard, mouse, joystick input.
• xinput1_4.dll = XInput. Handles Xbox controllers and similar gamepads.

Both are part of Microsoft DirectX. Most modern games rely on them. If Windows blocks them, the game can’t detect your controls properly. And it quits before it even starts.

Why would Windows block them?

• The file came from the internet.
• Your antivirus flagged it.
• It was copied from another PC.
• A mod replaced the original file.

Now let’s fix this step by step.

Step 1: Unblock the DLL File (The Quick Fix)

Sometimes Windows blocks files downloaded from the internet. Even safe ones.

Here’s what to do:

1. Go to your game folder.
2. Find dinput8.dll or xinput1_4.dll.
3. Right-click the file.
4. Select Properties.
5. If you see a checkbox or message saying “This file came from another computer and might be blocked”, click Unblock.
6. Press Apply, then OK.

That’s it. Try launching the game again.

If you don’t see the Unblock option, move to the next solution.

Step 2: Reinstall DirectX (The Proper Fix)

If the file is missing or corrupted, reinstalling DirectX usually fixes everything.

Important rule: Never download DLL files from random DLL websites.

They often contain malware. Or old versions. Or modified files.

Instead:

1. Go to Microsoft’s official website.
2. Download the DirectX End-User Runtime Web Installer.
3. Run it as Administrator.
4. Restart your computer.

This reinstalls all essential DirectX components safely. Including the correct versions of both DLL files.

Step 3: Repair or Reinstall the Game

Sometimes the issue isn’t Windows. It’s the game installation.

If you use Steam:

1. Open Steam.
2. Go to Library.
3. Right-click the game.
4. Select Properties.
5. Click Installed Files.
6. Choose Verify integrity of game files.

This scans and replaces broken or missing files automatically.

If you use Epic Games Launcher, there’s also a Verify option under the three-dot menu.

This method is simple and very effective.

Step 4: Check Windows Security or Antivirus

Your antivirus may have quarantined the file.

It might think it’s suspicious. Especially if you installed mods.

To check Windows Security:

1. Open Windows Security.
2. Click Virus & threat protection.
3. Select Protection history.
4. Look for blocked or quarantined items.
5. If you see the DLL, restore it.

If you use third-party antivirus software, open its dashboard and check the quarantine section.

If needed, add your game folder as an exclusion. But only if you trust the game source.

Step 5: Run System File Checker

If Windows system files are damaged, DLL loading can fail.

Good news. Windows has a built-in repair tool.

Here’s how:

1. Press Win + S.
2. Type cmd.
3. Right-click Command Prompt.
4. Select Run as administrator.
5. Type: sfc /scannow
6. Press Enter.

Wait. It takes a few minutes.

This command scans and repairs corrupted system files automatically.

Step 6: Check for Visual C++ Redistributables

Some games depend on Microsoft Visual C++ packages.

If they’re missing, DLL errors appear.

Install the latest:

• Visual C++ 2015–2022 (most important)
• Both x64 and x86 versions

After installation, restart your PC and test the game again.

Step 7: Remove Problematic Mods

This one is common.

Many game mods use a custom dinput8.dll file. Especially for:

• Script injectors
• Graphics enhancements
• Controller modifications

If the DLL is modded and Windows blocks it, the game won’t load.

Try this:

1. Rename the DLL to something like dinput8_backup.dll.
2. Launch the game.
3. If it works, the mod file is the problem.

You may need an updated version of the mod.

Quick Comparison of Fix Methods

What Not to Do

Let’s save you from future headaches.

• Do not download DLL files from “free DLL download” websites.
• Do not disable your antivirus permanently.
• Do not copy DLL files from another random computer.
• Do not ignore Windows updates.

These shortcuts often cause bigger problems later.

When Nothing Works

If you tried everything, here are last-resort options:

• Update Windows fully.
• Update GPU drivers.
• Create a new Windows user account and test the game.
• Reinstall Windows (only if system corruption is severe).

Most users never reach this stage. Usually, reinstalling DirectX or verifying the game solves it.

Why This Problem Happens So Often

Modern games are complex.

Windows security is stricter than ever.

Antivirus programs are aggressive.

Mods change core files.

All of this creates the perfect storm for DLL loading errors.

But now you understand what’s actually going on.

A blocked DLL is not a mystery. It’s just Windows being cautious.

Final Thoughts

Seeing a dinput8.dll or xinput1_4.dll error looks scary. It feels technical. Complicated. Serious.

But it’s usually simple.

Unblock the file. Reinstall DirectX. Verify the game. Check antivirus. Done.

Follow the steps calmly. Restart when needed. Avoid shady downloads.

And soon you’ll be back in your game. Controller working. Keyboard responding. No angry error messages in sight.

Now go fix it. Your game is waiting.