How to Fix "api-ms-win-core-memory-l1-1-6.dll is Missing" Errors
Encountering the api-ms-win-core-memory-l1-1-6.dll missing error can be frustrating, especially when it prevents your favorite apps or games from launching. This specific file is part of the Microsoft Visual C++ Redistributable packages and the Windows API set, which help programs communicate with your computer's memory.
Here is a comprehensive guide to getting your system back on track. 1. Update Windows to the Latest Version
The api-ms-win series of DLLs are often updated through Windows Update. If your system is out of date, it may lack the specific version required by newer software. Go to Settings > Update & Security > Windows Update. Click Check for updates. Install all pending updates and restart your computer. 2. Reinstall Visual C++ Redistributable Packages
This is the most common fix. This DLL is a component of the Microsoft Visual C++ 2015-2022 Redistributable. If the installation is corrupted, you need to repair or reinstall it. Visit the official Microsoft Download page. Download both the x86 (32-bit) and x64 (64-bit) versions.
Run the installers. If they are already installed, select Repair. Otherwise, proceed with a fresh installation. Restart your PC after the process completes. 3. Run the System File Checker (SFC)
Windows has a built-in tool designed to find and fix missing or corrupted system files like DLLs. Type cmd in your Windows search bar. Right-click Command Prompt and select Run as Administrator. Type the following command and press Enter:sfc /scannow
Wait for the scan to finish (it may take 10–15 minutes). If it finds errors, it will attempt to fix them automatically. 4. Reinstall the Program Causing the Error
Sometimes the error isn't with Windows, but with how the specific app was installed. The application's installer often contains the exact DLL versions it needs. Uninstall the software that is triggering the error.
Download the latest version from the official developer website. Reinstall it to see if the missing file is restored.
5. Check for "Api-ms-win-core" Compatibility (Old Windows Versions)
If you are running Windows 7 or Windows 8.1, you might be missing the Universal C Runtime (CRT) update. This update is what allows older versions of Windows to recognize these specific "api-ms-win" files.
Search for the KB2999226 update on the Microsoft Update Catalog and install it manually for your specific OS version. ⚠️ A Critical Warning: Do Not Download Individual DLLs
You may see websites offering a direct download for api-ms-win-core-memory-l1-1-6.dll. Avoid these at all costs.
Security Risk: These files can be bundled with malware or spyware.
Incompatibility: DLLs are part of larger packages; a standalone file often won't work without the rest of its library.
Stability: Using the wrong version can cause "Blue Screen of Death" (BSOD) errors. api-ms-win-core-memory-l1-1-6.dll missing
Which program were you trying to open when this error first popped up? Knowing the specific software can help narrow down the exact version of the runtime you need.
The error api-ms-win-core-memory-l1-1-6.dll usually appears because your system is missing specific Windows API sets or C++ components. This is common when running newer apps on older Windows versions (like Windows 7 or 8.1) or when a recent update corrupted system files. 🛠️ Primary Fixes
Repair System Files: Run the System File Checker (SFC) to replace missing core DLLs. Search for CMD, right-click, and Run as Administrator. Type sfc /scannow and press Enter.
Update Visual C++: Download the latest Microsoft Visual C++ Redistributable packages. Install both x86 and x64 versions.
Install Windows Updates: Ensure all critical updates are installed, as these often include the missing API-set libraries.
Reinstall the App: If the error only happens with one program (like Halo Infinite or Skype), uninstall and reinstall that specific application. 💡 Specific Scenarios
Gaming (Steam/Linux): For games like Halo Infinite on Linux or Steam Deck, force the use of the Proton Hotfix in the game's compatibility settings.
Windows 7/8.1 Users: This specific version (l1-1-6) is native to newer Windows builds. If you're on an older OS, you may need a specific backport update or a "Universal C Runtime" (UCRT) update from the Microsoft Download Center. ⚠️ A Warning on Manual Downloads
Avoid downloading individual .dll files from unofficial "DLL fixer" websites. These files are often: Outdated and won't fix the issue. Incompatible with your specific version of Windows. Malicious or bundled with malware. What version of Windows are you currently using? Did this start after a specific update or installation?
Troubleshooting: Fixing the "api-ms-win-core-memory-l1-1-6.dll is Missing" Error
It is a frustrating moment when you try to launch a new game or application, and instead of a splash screen, you get a pop-up error: "The program can't start because api-ms-win-core-memory-l1-1-6.dll is missing from your computer."
This specific DLL (Dynamic Link Library) is part of the Windows API sets, which are essential components for modern software to communicate with the Windows operating system. When this file is missing or corrupted, the software simply won't know how to handle memory operations, causing it to crash. Here is how you can get your system back on track. 1. Reinstall Visual C++ Redistributable Packages
This is the most common and effective fix. These DLL files are often bundled with the Microsoft Visual C++ Redistributable packages. If these packages are outdated or missing, you will run into DLL errors.
Download the Latest Version: Visit the official Microsoft Visual C++ Redistributable download page.
Install Both Versions: Even if you have a 64-bit system, many games and apps are 32-bit. Download and install both the x86 and x64 versions.
Restart: Always restart your PC after installation to let the changes take effect. 2. Run the System File Checker (SFC) How to Fix "api-ms-win-core-memory-l1-1-6
If the DLL exists but is corrupted, Windows has a built-in tool to repair it. The SFC scan will compare your system files against a healthy version and replace any that are broken. Type cmd in your Windows search bar. Right-click Command Prompt and select Run as Administrator. Type the following command and hit Enter:sfc /scannow
Wait for the scan to finish (usually 5–10 minutes) and restart your computer. 3. Check for Windows Updates
If you are running an older version of Windows (like Windows 7 or 8.1), you might be missing critical "Universal C Runtime" updates that include these modern API sets. Newer games often require these updates to function properly on older operating systems. Go to Settings > Update & Security > Windows Update.
Click Check for updates and install any available "Optional" or "Feature" updates. 4. Verify Game or App Files
If the error only happens with one specific program (like a game on Steam or Epic Games), the problem might be in the app's own directory.
Steam: Right-click the game > Properties > Installed Files > Verify integrity of game files.
Epic Games: Click the three dots next to the game > Manage > Verify.
A Word of Caution: Avoid downloading standalone DLL files from "DLL downloader" websites. These files are often outdated, incorrect versions, or even bundled with malware. Always use official Microsoft installers to fix system file issues.
Did these steps solve your error, or are you still getting a different "API-MS-WIN" message? Let me know, and we can dig deeper into your specific system setup! api-ms-win-core-memory-l1-1-3 - Microsoft Q&A
"api-ms-win-core-memory-l1-1-6.dll missing" typically occurs when you attempt to run a modern application or game (like Halo Infinite
or newer software) on an older version of Windows or an outdated system . This specific DLL is an introduced in later versions of Windows 10
(specifically version 1703 and later) to handle advanced memory management. 1. Update Windows (Primary Fix)
The most common cause is that your Windows version does not support the specific API version required by the application. For Windows 10/11: Settings > Update & Security > Windows Update Check for updates . Install all pending updates, including optional ones. For Windows 7/8: These operating systems do natively support version
. If you are seeing this on Windows 7, the application likely requires a newer OS version to run. 2. Repair System Files
If your OS version should have the file but it's corrupted or missing: Command Prompt
as an Administrator (Search "cmd", right-click, and select "Run as Administrator"). sfc /scannow Method 6: Extract the DLL from Windows Component
Wait for the scan to finish. If it finds and repairs corrupt files, restart your computer. 3. Reinstall Microsoft Visual C++ Redistributables
Many "api-ms-win-core" errors are linked to the Universal C Runtime (UCRT). Download the All-in-One Visual C++ Redistributable package from a reputable source or the latest supported downloads from Microsoft. Install both the Restart your PC. www.threesl.com 4. Game/Application Specific Fixes If you are getting this error while trying to play Halo Infinite on Linux/Steam Deck:
This error often appears when using an incompatible version of In your Steam Library, right-click the game > Properties Compatibility
Check "Force the use of a specific Steam Play compatibility tool" and select Proton Experimental or the latest Important Warning Avoid downloading individual DLL files
from "DLL download" websites. These files are often outdated, incorrect for your specific system architecture, or may contain malware. Always use official Windows Updates or Microsoft redistributable packages to restore system files. Windows version to see if it supports this specific DLL?
The api-ms-win-core-memory-l1-1-6.dll error serves as a stark reminder of the fragility of modern computing. We tend to think of software as a solid block of code, but it is actually a house of cards built on layers of dependencies. Your video game relies on a graphics engine, which relies on a system API, which relies on a C Runtime library, which relies on a specific DLL to manage memory.
When one microscopic component—a 100KB file named after a library catalog system—goes missing, the entire tower collapses. It is a frustrating experience for the user, but a testament to the engineering of Windows that such errors are rare, given the millions of moving parts interacting seamlessly every second we spend at our screens.
Here’s a structured review/analysis of the “api-ms-win-core-memory-l1-1-6.dll missing” error, written from a technical support perspective. This can be used as a guide, a forum post, or internal documentation.
For advanced users only. If you know the DLL is missing from System32, you can manually restore it from the WinSxS (Side-by-Side) component store.
Procedure:
dir /s C:\Windows\WinSxS\api-ms-win-core-memory-l1-1-6.dll
C:\Windows\WinSxS\amd64_microsoft...).[SourceFolder] with your result):
copy [SourceFolder]\api-ms-win-core-memory-l1-1-6.dll C:\Windows\System32\
copy [SourceFolder]\api-ms-win-core-memory-l1-1-6.dll C:\Windows\SysWOW64\
regsvr32 api-ms-win-core-memory-l1-1-6.dll and press Enter to register the DLL.Note: If the file isn’t found in WinSxS, proceed to the final method.
Q: Is api-ms-win-core-memory-l1-1-6.dll a virus?
A: No. The legitimate file is published by Microsoft. However, malware sometimes uses similar names. Always check the digital signature: Right-click the DLL > Properties > Digital Signatures tab. It should show “Microsoft Windows”.
Q: Why does this error only happen with one specific game or app?
A: That app was compiled with a newer Visual Studio version that requires this specific DLL. Updating your system’s runtime libraries (Method 1) is the solution.
Q: Can I just copy this DLL from another computer?
A: Only if the other computer has the same Windows version and architecture (both 64-bit, same build number). Otherwise, you may cause “side-by-side configuration is incorrect” errors.
Q: Will resetting my PC fix the issue?
A: Yes, a full reset (“Keep nothing” option) will fix it, but it’s a last resort. Use Method 7 (In-Place Upgrade) first.