Api-ms-win-core-debug-l1-1-1.dll DLL Errors: Download and Troubleshoot

Last Updated: 07/28/2020
[Time to Read: ~3-5 minutes]

Api-ms-win-core-debug-l1-1-1.dll uses the DLL file extension, which is more specifically known as a ApiSet Stub DLL file. It is classified as a Win64 DLL (Dynamic link library) file, created for Microsoft® Windows® Operating System by Oracle Corporation.

The first release of api-ms-win-core-debug-l1-1-1.dll for the Windows 8 platform was on 08/01/2012 for Windows 8. The most recent release for VirtualBox 6.0.14 launched on 10/15/2019 [version 10.0.16299.15 (WinBuild.160101.0800) release]. Api-ms-win-core-debug-l1-1-1.dll is included in VirtualBox 6.0.14, VMware Workstation 12.5.5, and LogMeIn Hamachi

In this short article, you will discover detailed file information, steps for troubleshooting DLL file problems with api-ms-win-core-debug-l1-1-1.dll, and list of free downloads for every version that exists in our comprehensive file directory.

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Recommended Download: Fix api-ms-win-core-debug-l1-1-1.dll / VirtualBox-related registry issues with WinThruster.

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File Overview

General Information
File Name: api-ms-win-core-debug-l1-1-1.dll
File Extension: DLL file extension
Description: ApiSet Stub DLL
Object File Type: Dynamic link library
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
Developer and Software Information
Software Developer: Microsoft Corporation
Software Program: Microsoft® Windows® Operating System
Legal Copyright: © Microsoft Corporation. All rights reserved.
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x0000

What are api-ms-win-core-debug-l1-1-1.dll Error Messages?

Dynamic Link Library api-ms-win-core-debug-l1-1-1.dll Errors

Api-ms-win-core-debug-l1-1-1.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like api-ms-win-core-debug-l1-1-1.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like DismHost.exe - to follow. These files were created so that multiple programs (eg. VirtualBox) could share the same api-ms-win-core-debug-l1-1-1.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when api-ms-win-core-debug-l1-1-1.dll is attempted to be loaded either when VirtualBox is starting up, or in some cases already running. Some of the most common api-ms-win-core-debug-l1-1-1.dll errors include:

Your api-ms-win-core-debug-l1-1-1.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with VirtualBox), or deleted by a malware infection. Furthermore, api-ms-win-core-debug-l1-1-1.dll file corruption could be caused from a power outage when loading VirtualBox, system crash while loading api-ms-win-core-debug-l1-1-1.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix api-ms-win-core-debug-l1-1-1.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your api-ms-win-core-debug-l1-1-1.dll issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the api-ms-win-core-debug-l1-1-1.dll error, please proceed to the Step 2 below.

Step 2: If recently installed VirtualBox (or related software), uninstall then try reinstalling VirtualBox software.

You can uninstall VirtualBox software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for VirtualBox 6.0.14 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall VirtualBox software.

If this Step 2 fails as well, please proceed to the Step 3 below.

VirtualBox 6.0.14

Oracle Corporation

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many api-ms-win-core-debug-l1-1-1.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the api-ms-win-core-debug-l1-1-1.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your api-ms-win-core-debug-l1-1-1.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate api-ms-win-core-debug-l1-1-1.dll file version. We maintain a comprehensive database of 100% malware-free api-ms-win-core-debug-l1-1-1.dll files for every applicable version of VirtualBox. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download api-ms-win-core-debug-l1-1-1.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate VirtualBox folder location:
    Windows 10: C:\Windows\Temp\413C0095-8078-4751-A55A-958E3C9429F4\
    Windows 10: C:\Windows\Temp\B30C409E-E261-49BB-B622-0A6B2C34D4A8\
    Windows 10: C:\Windows\System32\downlevel\
    Windows 10: C:\Windows\Temp\13A97ADB-EF9B-4948-9FA2-11CB53C98C1D\
    Windows 10: C:\Users\Tester\AppData\Local\Temp\CDE1541D-56A0-4A7D-A711-E4B061CA591D\
    Show 7 more directories +
    Windows 10: C:\Users\Tester\AppData\Local\Temp\DA5249C7-9920-4B7C-BF86-75A84D27A2AE\
    Windows 10: C:\Windows\Temp\37CEF5E8-28C2-4409-8C7D-11282D055B1B\
    Windows 10: C:\Windows\Temp\95CAF3A5-0863-472F-B657-E0C873FA773C\
    Windows 10: C:\Windows\Temp\D9A81149-09D5-4235-B26C-1270D55DEC4D\
    Windows 8.1: C:\Windows\System32\
    Windows 8.1: C:\Windows\System32\downlevel\
    Windows 8: C:\Windows\System32\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve api-ms-win-core-debug-l1-1-1.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

Download api-ms-win-core-debug-l1-1-1.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying api-ms-win-core-debug-l1-1-1.dll to your appropriate Windows system directory. Oracle Corporation typically does not release VirtualBox DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing api-ms-win-core-debug-l1-1-1.dll and all other DLL files for VirtualBox. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
Windows 8.1
Windows 8

Files Related to api-ms-win-core-debug-l1-1-1.dll

DLL Files Related to api-ms-win-core-debug-l1-1-1.dll

File Name Description Software Program (Version) File Size (bytes) File Location
api-ms-win-core-locali... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.16299.15) 10272 C:\Windows\Temp\37CEF5E8-28C2-4409-8C7D-11282D0...
System.Xml.ni.dll Dynamic Link Library VirtualBox 6.0.14 6968320 C:\Windows\assembly\NativeImages_v2.0.50727_64\...
api-ms-win-core-realti... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.16299.15) 11672 C:\Windows\Temp\37CEF5E8-28C2-4409-8C7D-11282D0...
VBoxClient-x86.dll VirtualBox Interface (32-bit) Oracle VM VirtualBox ( 843120 C:\Program Files\Oracle\VirtualBox\x86\
SysprepProvider.dll DISM Sysprep Provider Microsoft® Windows® Operating System (10.0.16299.15) 759704 C:\Windows\Temp\37CEF5E8-28C2-4409-8C7D-11282D0...

Other Files Related to api-ms-win-core-debug-l1-1-1.dll

File Name Description Software Program (Version) File Size (bytes) File Location
CBS.log Log VirtualBox 6.0.14 971119 C:\Windows\Logs\CBS\
setupapi.dev.log Log Java Development Kit (JDK) J2SE 5.0 Update 22 684126 C:\Windows\inf\
ndiscap.PNF Precompiled INF VirtualBox 6.0.14 5868 C:\Windows\System32\DriverStore\FileRepository\...
WmiApRpl.ini Windows Initialization VirtualBox 6.0.14 29736 C:\Windows\inf\WmiApRpl\0009\
api-ms-win-core-profil... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 17528 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...


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