How to Fix Missing DLL File Errors in Windows 11

Introduction

Getting a “DLL file missing” error when you’re just trying to open a program is incredibly frustrating—I know because I help people fix this problem every single day. You click on your software, ready to get to work, and instead you’re stuck staring at an error message with a weird technical filename like “MSVCR120.dll” or “VCRUNTIME140.dll.”

Here’s the good news: this is almost always fixable in just a few minutes, and you don’t need to be a tech expert. I’ve walked hundreds of people through this exact problem, and we’re going to get it fixed together.

What you need to know before we start:

• DLL files are shared code libraries that multiple programs use
• “Missing” errors usually mean Windows can’t find a file it needs
• There are safe ways and dangerous ways to fix this—we’ll use the safe methods
• Most DLL errors are caused by missing Visual C++ Redistributables (which I’ll explain below)

Important warning right up front: You’re going to see websites offering to let you download individual DLL files. Never do this. I’ve seen too many computers get infected with malware from these sites. They know people search for DLL files when desperate, and they exploit it. We’re going to fix this the safe way using official sources.

About this guide: I’m Jamie Chen, and I spent 8 years in enterprise technical support, specializing in Windows system troubleshooting and malware remediation. I’ve resolved over 10,000 support cases involving DLL errors, and I can’t count how many times I’ve saved users from downloading infected files from sketchy DLL websites. This guide uses only safe, Microsoft-approved methods.

This guide is part of our Windows Troubleshooting Guide, which covers systematic approaches to solving all kinds of Windows errors.

Let’s start with understanding what’s happening, then we’ll fix it step by step.

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Understanding DLL Errors

Before we jump into solutions, I want to give you a quick understanding of what’s actually happening when you get a DLL error. I know you’re eager to fix it, but knowing the “why” behind these errors will help you understand why my solutions work—and more importantly, why those DLL download sites are so dangerous. This will only take a couple of minutes, and I promise to keep the technical stuff simple and practical.

What Are DLL Files?

DLL stands for “Dynamic Link Library”—but that technical name doesn’t really help, does it? Let me explain it in plain English.

Think of DLL files like ingredients in recipes. Multiple recipes (programs) use the same ingredients (DLL files). If an ingredient is missing from your pantry, any recipe that needs it won’t work. That’s exactly what’s happening when you get a DLL error—your program needs a specific “ingredient” but can’t find it.

Windows and your programs share these DLL files to save space and make updates easier. Instead of every program including its own copy of common code, they all use the same shared DLL files.

Common DLL Error Messages

You’ve probably seen one of these messages (or something similar):

• “The program can’t start because MSVCR120.dll is missing from your computer”
• “VCRUNTIME140.dll was not found”
• “MSVCP140.dll is missing from your computer”
• “d3dx9_43.dll not found”
• “xinput1_3.dll is missing”

The exact filename changes, but the message is basically the same: Windows needs a file and can’t find it.

Why DLL Errors Happen

Here are the most common causes I see:

1. Missing Visual C++ Redistributables (this is the #1 cause by far)

   • Many programs need these files but don’t install them automatically
   • You probably never knew you needed them until now

2. Program uninstalled incorrectly

   • Removed shared DLL files that other programs still need

3. Windows Update

   • Updated a DLL file, old version was removed
   • Sometimes updates go wrong and corrupt files

4. Corrupted installation

   • Program didn’t install correctly in the first place

5. Malware

   • Viruses sometimes delete or corrupt DLL files (if you suspect this, scan for and remove malware before proceeding)

My experience: About 70-80% of the DLL errors I help people with are missing Visual C++ Redistributables. We’re going to start there.

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Safe vs. Unsafe DLL Fix Methods

Before we get into solutions, I need to make sure you understand what’s safe and what’s dangerous. This is critically important because the wrong approach can get your computer infected with malware—I’m not exaggerating. When people search for DLL files online, they’re often desperate to fix their problem quickly, and malicious websites exploit that desperation. I’ve spent countless hours cleaning infections from computers where users downloaded DLLs from sketchy sites. Let’s make sure that doesn’t happen to you by using only official, safe methods.

✅ SAFE Methods (These Are What We’ll Use)

• Install Microsoft Visual C++ Redistributables (fixes most errors)
• Reinstall the program showing the error
• Run Windows Update
• Use System File Checker (SFC) to repair Windows files
• Install DirectX End-User Runtime (for gaming DLL errors)

All of these get DLL files from official, trusted sources.

❌ UNSAFE Methods (Never Do These)

NEVER download individual DLL files from DLL download websites.

I need to be very clear about this because it’s tempting when you just want a quick fix. Don’t do it. Here’s why:

• Malware risk: These sites often bundle malware with DLL files
• Outdated files: The DLL version might not match what your program needs
• Wrong versions: 32-bit vs 64-bit mismatches cause more problems
• Security vulnerabilities: You’re downloading executable code from untrusted sources

I’ve personally cleaned malware infections from computers where users downloaded DLLs from these sketchy websites. They’re designed to look helpful, but many are traps.

My philosophy: We fix DLL errors by addressing the root cause (missing software packages) rather than downloading random files from the internet. The safe way takes 5 extra minutes but avoids serious security risks.

Don’t copy DLL files from another computer either—version mismatches and licensing issues can cause more problems than they solve.

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Solution 1: Install Visual C++ Redistributables

Best for: Errors mentioning MSVCR, MSVCP, or VCRUNTIME in the filename

This is the solution that fixes most DLL errors, so we’re starting here.

What Are Visual C++ Redistributables?

Here’s the simple explanation: Visual C++ Redistributables are packages of common DLL files that many programs need. Programs written in Microsoft Visual C++ (which includes a huge portion of Windows software) require these files to run.

The problem is, many programs assume you already have these installed. They don’t include them in their installer. When you try to run the program without them, you get a DLL error.

How to Install All Visual C++ Redistributables

We’re going to install all versions because different programs need different versions. Don’t worry—they’re small, free, and they can all coexist peacefully on your computer.

Follow these steps:

Step 1: Go to Microsoft’s official download page

1. Open your web browser
2. Search for: “Microsoft Visual C++ Redistributables download”
3. Look for the official Microsoft page (URL will be microsoft.com)

Step 2: Download all versions

You need to download several different versions. Yes, download them all. Here’s what you need:

• Visual C++ 2015-2022 Redistributable (both x86 and x64)
• Visual C++ 2013 Redistributable (both x86 and x64)
• Visual C++ 2012 Redistributable (both x86 and x64)
• Visual C++ 2010 Redistributable (both x86 and x64)
• Visual C++ 2008 Redistributable (both x86 and x64)
• Visual C++ 2005 Redistributable (both x86 and x64)

Important: Download both x86 (32-bit) and x64 (64-bit) versions of each. Even if you have 64-bit Windows, many programs are still 32-bit and need the x86 versions.

Step 3: Install all the downloads

1. Go to your Downloads folder
2. Run each installer (just double-click them)
3. Click through the installation (accept license, click Install, wait for completion)
4. Repeat for all the versions you downloaded

This takes about 10 minutes total. Think of it like stocking your pantry with common ingredients—you’re giving Windows all the “ingredients” programs typically need.

Step 4: Restart your computer

After installing all the redistributables, restart your PC. This ensures Windows recognizes the new files.

Step 5: Test your program

Try opening the program that was giving you the DLL error.

Did it work?

• ✅ If yes: Excellent! The missing redistributable was the problem. You’re all set.
• ❌ If no: That’s okay—we have more solutions. Continue to Solution 2.

Note: If the DLL error is preventing an application from launching entirely, you may also find our guide on how to troubleshoot applications that won’t launch helpful for additional diagnostic steps.

Which DLL Needs Which Redistributable?

If you’re curious about the connection, here’s how specific DLL files map to redistributable versions:

• VCRUNTIME140.dll or MSVCP140.dll → Visual C++ 2015-2022
• MSVCR120.dll or MSVCP120.dll → Visual C++ 2013
• MSVCR110.dll or MSVCP110.dll → Visual C++ 2012
• MSVCR100.dll or MSVCP100.dll → Visual C++ 2010

But honestly? Just install all the versions. It’s simpler and prevents future errors.

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Solution 2: Reinstall the Problem Program

Best for: Error appears when launching one specific program

If only one program is giving you the DLL error, reinstalling that program often fixes it. A fresh installation includes all the DLL files that program needs.

Follow these steps:

Step 1: Uninstall the program

1. Press Windows key + I to open Settings
2. Click “Apps”
3. Click “Installed apps”
4. Find the program that’s showing the DLL error
5. Click the three dots next to the program name
6. Click “Uninstall”
7. Follow the prompts to remove it
8. Click “Uninstall” again to confirm

What you should see: A progress bar, then confirmation that the program was uninstalled.

Step 2: Restart your computer

Yes, another restart. This clears out any leftover files and ensures Windows is in a clean state.

Step 3: Download and reinstall the program

1. Go to the program’s official website (Google “[program name] official download”)
2. Download the latest version
3. Run the installer
4. Follow the installation steps

Important: Make sure you’re downloading from the official website or a trusted source like the Microsoft Store. Not from random download sites.

Step 4: Test the program

Open the program and see if it works now.

My experience: If the error is program-specific, this fixes it about 80% of the time. The fresh installation brings back any DLL files that were missing or corrupted.

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Solution 3: Run Windows Update

Best for: General system DLL issues, outdated Windows files

Sometimes Windows Update includes DLL file updates and fixes. It’s quick to check and might solve your problem.

Follow these steps:

1. Press Windows key + I to open Settings
2. Click “Windows Update” in the left sidebar
3. Click “Check for updates”
4. Wait while Windows searches for available updates
5. Click “Download & install” if updates are found
6. Wait for updates to install (this might take a while)
7. Restart your computer when prompted

What this accomplishes: Windows Update can replace outdated or corrupted system DLL files with newer, working versions.

Did it work?

• ✅ If yes: Great! Windows Update fixed the corrupted system files.
• ❌ If no: Move on to Solution 4.

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Solution 4: System File Checker (SFC Scan)

Best for: Corrupted or deleted Windows system DLL files

If the missing DLL is a Windows system file (not a program file), we can use a built-in Windows repair tool called System File Checker.

I know the next part involves the Command Prompt, which might look intimidating if you haven’t used it before. But don’t worry—I’m going to walk you through it exactly. Just follow along step by step. Thousands of people have done this successfully, and you can too.

Follow these steps:

Step 1: Open Command Prompt as Administrator

1. Click the Start button
2. Type: cmd or command prompt
3. Right-click on “Command Prompt” in the results
4. Click “Run as administrator”
5. Click “Yes” when Windows asks “Do you want to allow this app to make changes?”

What you should see: A black window with white text. This is the Command Prompt running with administrator privileges.

Step 2: Run the SFC scan

1. Type this command exactly:

   sfc /scannow
   

2. Press Enter

What happens now:

• Windows will scan all your system files
• This takes 15-30 minutes usually
• The progress bar might look stuck at certain percentages (20%, 40%) for 10+ minutes—that’s normal
• Don’t close the window or turn off your computer while it’s running
• You can use your computer for other things, but let the scan finish

My patience tip: Grab a coffee. Let it run. The scan genuinely takes this long, and it’s working even when it looks stuck. Don’t interrupt it.

Step 3: Read the results

When the scan finishes, you’ll see one of these messages:

“Windows Resource Protection did not find any integrity violations”

• Your Windows files are fine
• The DLL error is probably program-specific, not a Windows system problem
• Try Solutions 1 or 2 again, or contact the software maker

“Windows Resource Protection found corrupt files and successfully repaired them”

• ✅ Excellent! Windows found and fixed the problem
• Restart your computer now
• Try your program again after restart

“Windows Resource Protection found corrupt files but was unable to fix some of them”

• Windows found problems but couldn’t fix them automatically
• You may need to run a DISM repair (more advanced—contact support if needed)

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Solution 5: Install DirectX End-User Runtime

Best for: Gaming DLL errors (d3dx9, d3dx10, d3dx11, xinput files)

If you’re getting DLL errors when trying to run a game, especially errors mentioning “d3dx” or “xinput” in the filename, you need to install DirectX End-User Runtime.

Wait—doesn’t Windows 11 already have DirectX? Yes, but it doesn’t include certain legacy DLL files that older games still need. This package fills in those gaps.

Follow these steps:

Step 1: Download DirectX End-User Runtime

1. Open your browser
2. Search for: “DirectX End-User Runtime download”
3. Look for the official Microsoft download page
4. Download “DirectX End-User Runtimes (June 2010)”

Step 2: Install DirectX

1. Run the downloaded installer
2. Accept the license agreement
3. Click through the installation
4. Wait for completion

Step 3: Restart and test

1. Restart your computer
2. Try running your game

Why the June 2010 version? This specific version contains legacy DirectX DLL files that modern Windows doesn’t include by default. Many older games still need these files.

Alternative for newer games: If you’re playing modern games and getting DLL errors, try updating your graphics card drivers (NVIDIA, AMD, or Intel). Graphics driver updates often include DirectX components.

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Solution 6: Check Recycle Bin (Quick Long-Shot)

Best for: You recently uninstalled something or cleaned up files

This is a long shot, but it takes 30 seconds to check. If the DLL file was accidentally deleted recently, it might be in the Recycle Bin.

Follow these steps:

1. Double-click the Recycle Bin icon on your desktop
2. Search for the DLL filename (type it in the search box)
3. If you find it: Right-click the file > Restore
4. Restart your computer
5. Test your program

My experience: This rarely works, but when it does, it’s the fastest fix possible. Worth a quick look.

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What NOT to Do (DLL Download Site Warning)

I need to emphasize this one more time because it’s so important. I know I’ve already warned you about DLL download sites earlier in this guide, but I’m going to repeat it here because this is the single biggest mistake I see people make when trying to fix DLL errors. These websites prey on desperate users, and the consequences can be severe—from malware infections to identity theft. Please, please don’t fall into this trap. The safe methods I’ve shown you will fix your problem without putting your computer and data at risk.

Dangerous “Fixes” to Avoid

NEVER:

❌ Download DLL files from dll-files.com or similar third-party sites

• High malware risk
• Outdated file versions
• Often scams designed to exploit desperate users
• I’ve cleaned infections from these sites more times than I can count

❌ Copy DLLs from System32 folder to program folders

• Causes version conflicts
• Can break other programs
• Doesn’t address the root cause

❌ Randomly delete DLL files

• Will break other programs that need them
• Can make Windows unstable

My security warning: Those DLL download websites look helpful on the surface. They show up first in search results. They seem like an easy fix. But they’re dangerous. Some are intentional malware distributors. Others just provide outdated files that don’t work and might cause more problems.

Stick to official sources:

• Microsoft (for Redistributables, DirectX, Windows Update)
• The program developer’s official website (for program reinstalls)
• Windows built-in tools (SFC, DISM)

These take a few extra minutes but keep your computer safe.

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Recommended Fix Order (Summary)

We’ve covered six different solutions in this guide, and you might be wondering: “Where should I start?” The good news is that most DLL errors are fixed by the first solution or two—you usually won’t need to work through all six. Here’s the order I recommend trying these solutions based on my experience with thousands of DLL errors. Start at the top and work your way down until your problem is fixed. Most people succeed with Solution 1 or 2.

1. Install Visual C++ Redistributables (fixes 70-80% of errors)

• Takes 10 minutes
• Prevents future errors too
• Start here for MSVCR, MSVCP, VCRUNTIME errors

2. Reinstall the problem program (if error is program-specific)

• Takes 5-15 minutes depending on program size
• Brings back any missing program-specific DLLs

3. Run Windows Update

• Takes 5-30 minutes
• Quick to try, sometimes fixes system DLL issues

4. Run SFC scan (for Windows system file issues)

• Takes 15-30 minutes
• Repairs corrupted Windows DLLs

5. Install DirectX End-User Runtime (for gaming DLLs)

• Takes 5 minutes
• Only needed if you’re getting gaming-related DLL errors

Work through these in order. Most DLL errors are fixed by Solutions 1 or 2.

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Conclusion

I know DLL error messages look scary with their technical filenames and cryptic wording. But here’s the truth: they’re actually one of the easier Windows errors to fix once you know what to do. We’ve covered six proven solutions, safety warnings to protect your computer, and a clear troubleshooting order that reflects what actually works in real-world support cases.

The key takeaways:

• Most DLL errors are caused by missing Visual C++ Redistributables
• Safe fixes come from official sources (Microsoft, program developers, Windows tools)
• Never download DLL files from third-party websites (malware risk)
• The fixes we covered solve 90%+ of DLL errors
• You don’t need to be a tech expert—just follow the steps

If you’re still stuck after trying all these solutions, don’t panic. You might have a more unusual situation. Try:

• Checking if malware is deleting files (run a full Windows Defender scan)
• Contacting the program developer’s support (they might have program-specific fixes)
• Searching for your specific DLL filename + “fix” to find specialized solutions

You’ve got this. Start with the Visual C++ Redistributables—that’s the solution that works most often. If that doesn’t do it, work through the other solutions systematically.

The good news? Once you fix this, you’ll know how to handle DLL errors forever. And by installing all the redistributables, you’re preventing many future errors before they happen.

Explore more error solutions in our Troubleshooting Guide for help with other Windows issues.

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Frequently Asked Questions

What's the most common DLL error and how do I fix it?

The most common DLL errors I see are MSVCR120.dll, VCRUNTIME140.dll, and MSVCP140.dll—these are all Visual C++ Runtime libraries that programs need to run properly.

The fix: Download and install all Microsoft Visual C++ Redistributables (versions 2005 through 2022, both x86 and x64) from Microsoft’s official website. This fixes 70-80% of DLL errors I encounter. Install all versions, restart your computer, and try your program again.

Why this works: These redistributable packages contain the exact DLL files that most Windows programs need. Installing all versions ensures you have the complete set, preventing current and future errors.

Can I just download the missing DLL file instead of installing big packages?

No, absolutely not. I know it seems simpler to just download the one file you need, but don’t do it. Here’s why:

• Third-party DLL download sites often contain malware
• Downloaded DLLs may be outdated or the wrong version
• You could face licensing issues and legal problems
• It doesn’t fix the root cause (you’ll get more errors later)
• Version mismatches can break other programs

The safe way: Install the official Microsoft packages (Redistributables, DirectX) that include those DLLs. Yes, it takes 10 minutes instead of 1 minute. But it’s safe, it’s legal, and it actually works reliably.

I’ve cleaned malware infections from computers where people downloaded DLLs from sketchy websites. It’s not worth the risk to your data and privacy.

Why do I get DLL errors when I just installed a program?

The program’s installer assumed you already had certain required files (Visual C++ Redistributables or DirectX components), so it didn’t include them. This is extremely common—many developers don’t bundle these dependencies to keep their installers smaller.

The fix: Install Visual C++ Redistributables (all versions, both x86 and x64) and DirectX End-User Runtime. This gives you the common “ingredients” most programs need. Think of it like stocking your pantry—once you have these installed, most programs will find everything they need.

Pro tip: After installing these packages once, you’ll rarely see DLL errors again, even when installing new programs.

Will reinstalling Windows fix DLL errors?

Yes, but that’s the nuclear option. Reinstalling Windows wipes everything and starts fresh, which would certainly fix DLL errors. But it’s like demolishing your house because you’re missing a light bulb.

Try these first (in order):

1. Install Visual C++ Redistributables (10 minutes, fixes 70-80% of cases)
2. Reinstall the problem program (5-15 minutes)
3. Run SFC scan to repair system files (30 minutes)
4. Try the other solutions in this guide

Reinstalling Windows should be your absolute last resort after trying everything else. 99% of DLL errors are fixable without reinstalling Windows, and you’ll save hours of setup time.

Can malware cause DLL errors?

Yes, malware can delete or corrupt DLL files. If you’re getting DLL errors out of nowhere (you weren’t installing or uninstalling anything), malware is a possibility worth investigating.

What to do:

1. Run a full malware scan using Windows Defender or Malwarebytes
2. Remove any threats found
3. Run SFC scan (sfc /scannow in admin Command Prompt) to repair any corrupted system files
4. Reinstall any affected programs to replace their specific DLLs

If you find malware, clean it first, then fix the DLL errors. Otherwise, the malware might just re-corrupt files after you repair them. For comprehensive malware removal, see our malware removal guide.

I installed Visual C++ Redistributables but still get the error. What now?

Don’t worry—we have more options. Try these steps in order:

1. Restart your computer (Redistributables often need a restart to take full effect)
2. Verify you installed both x86 AND x64 versions (many users miss this)
3. Reinstall the program showing the error (fresh install with all new files)
4. Check if it’s a DirectX DLL (filenames starting with “d3dx” or “xinput” need DirectX End-User Runtime, not Redistributables)
5. Run SFC scan (the system files themselves might be corrupted)
6. Check for Windows Updates (might include important DLL updates)

If none of those work, the error might be program-specific. Contact the software developer’s support—they may have a specific fix for their program or know about compatibility issues.

Do I need both x86 and x64 Visual C++ Redistributables?

Yes, install both. Even on 64-bit Windows, you need both versions:

• x64 (64-bit): For 64-bit programs
• x86 (32-bit): For 32-bit programs

Many programs are still 32-bit even on modern 64-bit Windows 11. If you only install the x64 versions, 32-bit programs will still give you DLL errors. This is one of the most common mistakes users make.

The good news: both versions are small (under 50MB total for all versions combined), and they coexist peacefully. There’s no downside to installing both—it just ensures all your programs find what they need. Windows automatically loads the correct version for each program.

Should I use System Restore to fix DLL errors?

System Restore can fix DLL errors if the error started recently after installing or uninstalling software. However, it’s not my first recommendation because:

Pros:

• Reverts system files to a working state
• Can undo problematic software changes
• Non-destructive (doesn’t delete personal files)

Cons:

• Only works if you have a restore point before the error started
• Can take 30-60 minutes
• May remove recently installed programs
• Doesn’t fix corrupted personal files

My recommendation: Try installing Visual C++ Redistributables first (faster, simpler). Use System Restore if the error started after a specific event (Windows update, program installation) and you have a recent restore point. To access it: Search “Create a restore point” in Start menu, click “System Restore” button.

I installed the x64 Redistributable but the error says the 32-bit DLL is missing. Why?

This is an architecture mismatch—you installed the 64-bit package but need the 32-bit version. The program you’re trying to run is a 32-bit program, so it needs the x86 (32-bit) version of the redistributable, not the x64 version.

The solution: Go back and install the x86 version of the same Visual C++ Redistributable. Both versions can coexist on your system without conflict.

How to tell which you need:

• If the DLL error persists after installing x64 versions, you need x86
• If the program installed to “C:\Program Files (x86)”, it’s 32-bit and needs x86 redistributables
• If the program installed to “C:\Program Files”, it’s probably 64-bit

Best practice: Just install both x86 AND x64 versions of all redistributables to cover all scenarios.

How can I prevent DLL errors in the future?

Great question—prevention is better than troubleshooting. Here’s how to avoid DLL errors:

One-time setup (do this now):

1. Install all Visual C++ Redistributables (2005-2022, both x86 and x64)
2. Install DirectX End-User Runtime (if you play any games)
3. Keep Windows updated (Settings > Windows Update > Check for updates)

Ongoing habits:

1. Always restart after installing redistributables or major programs
2. Use official installers from developer websites (avoid third-party download sites)
3. Don’t manually delete files from System32 or Program Files folders
4. Uninstall programs properly through Settings > Apps (not by deleting folders)
5. Keep important programs updated to ensure they work with current DLL versions

Bonus tip: Run Windows Update monthly and keep your graphics drivers current. These updates often include important DLL updates that prevent errors. After this one-time setup, you’ll rarely encounter DLL errors again.