Download and Fix api-ms-win-core-synch-l1-1-0.dll

Sometimes Windows system displays error messages regarding corrupted or missing api-ms-win-core-synch-l1-1-0.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent api-ms-win-core-synch-l1-1-0.dll file can therefore effect in failed execution of the started process.

api-ms-win-core-synch-l1-1-0.dll file ApiSet Stub DLL. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of api-ms-win-core-synch-l1-1-0.dll related errors on your device. You can also download api-ms-win-core-synch-l1-1-0.dll file compatible with Windows 10, Windows 8.1, Windows 8.1, Windows 8, Windows 7, Windows 7 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8.1, Windows 8, Windows 7, Windows 7

File info

General information
Filename api-ms-win-core-synch-l1-1-0.dll
File extension DLL
Description ApiSet Stub DLL
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Dynamic link library
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)
Fix File Errors

There are various types of errors related to api-ms-win-core-synch-l1-1-0.dll file. api-ms-win-core-synch-l1-1-0.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to api-ms-win-core-synch-l1-1-0.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

  • api-ms-win-core-synch-l1-1-0.dll is corrupted
  • api-ms-win-core-synch-l1-1-0.dll cannot be located
  • Runtime Error - api-ms-win-core-synch-l1-1-0.dll
  • api-ms-win-core-synch-l1-1-0.dll file error
  • api-ms-win-core-synch-l1-1-0.dll file cannot be loaded. Module was not found
  • cannot register api-ms-win-core-synch-l1-1-0.dll file:
  • api-ms-win-core-synch-l1-1-0.dll file could not be loaded
  • api-ms-win-core-synch-l1-1-0.dll file doesn't exist



Application could not be started because api-ms-win-core-synch-l1-1-0.dll file is missing. Reinstall the application to solve the problem.


Problems related to api-ms-win-core-synch-l1-1-0.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing api-ms-win-core-synch-l1-1-0.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

api-ms-win-core-synch-l1-1-0.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with api-ms-win-core-synch-l1-1-0.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to api-ms-win-core-synch-l1-1-0.dll file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of api-ms-win-core-synch-l1-1-0.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to api-ms-win-core-synch-l1-1-0.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the api-ms-win-core-synch-l1-1-0.dll file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the api-ms-win-core-synch-l1-1-0.dll file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the api-ms-win-core-synch-l1-1-0.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace api-ms-win-core-synch-l1-1-0.dll file

The last solution is to manually download and replace api-ms-win-core-synch-l1-1-0.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded api-ms-win-core-synch-l1-1-0.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of api-ms-win-core-synch-l1-1-0.dll file example directory paths.

  • Windows 10: C:\Windows\System32\downlevel\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows 7: C:\Windows\SysWOW64\

If the steps did not solve your api-ms-win-core-synch-l1-1-0.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename api-ms-win-core-synch-l1-1-0.dll
System Windows 10
File size 13216 bytes
Date 2017-03-18
File details
MD5 a4e086b70b1af40df92442815f00c9bf
SHA1 f6943a32c38d1414fbd2006de56a6865c7f6014b
SHA256 642929860f87b1db2c7c52cd4afe7ccee4dbded09c7d78b59a4a0d4ad3f131e5
CRC32 bbcbf260
Example file location C:\Windows\System32\downlevel\
Filename api-ms-win-core-synch-l1-1-0.dll
System Windows 8.1
File size 3584 bytes
Date 2013-08-22
File details
MD5 926801d3b581f22ec94cbb35e74d4ba6
SHA1 b96bd099a08816152549f370625452ebaae06ee4
SHA256 5a659253a5522ed11dd380ee6656627898ee2256a0317e6d5ab89dcb1a2dc640
CRC32 8cfc95d8
Example file location C:\Windows\System32\
Filename api-ms-win-core-synch-l1-1-0.dll
System Windows 8.1
File size 4608 bytes
Date -0001-11-30
File details
MD5 b4023095b33191849562cc310954d9cc
SHA1 ead63c69b338ca84a48270947f7da993c7fb5d22
SHA256 8edf164aaaa07d8aca7ea5f82c471f8ee2a7c06da07b6479f6605502bfe47e81
CRC32 41d875f9
Example file location C:\Windows\System32\
Filename api-ms-win-core-synch-l1-1-0.dll
System Windows 8
File size 3584 bytes
Date 2012-07-26
File details
MD5 f4689a8dfe938e2c306b4bc4c2b2cfd0
SHA1 001fea6f9a9554cb71b1519c16c687031f36eb80
SHA256 65d37abf1a1beb8406d1f917861bdccb447f02256593221750fbf6b8cb01f780
CRC32 937c399e
Example file location 1: C:\Windows\System32\
Filename api-ms-win-core-synch-l1-1-0.dll
System Windows 7
File size 4096 bytes
Date -0001-11-30
File details
MD5 692249028dfce4b6142fdcc3b3ba022c
SHA1 e540b80587f33ba75d7bd0a8a4722d7e7c620650
SHA256 82ab47de74f08fe422022cda9a3ab14a20c4bf7efbdbabc02d93a1586d332179
CRC32 9528ab14
Example file location C:\Windows\SysWOW64\
Filename api-ms-win-core-synch-l1-1-0.dll
System Windows 7
File size 4096 bytes
Date 2009-07-14
File details
MD5 d7aead071259f92286ed8daf1a8271ac
SHA1 5e63cbb1d62422e0fad020d50ad7f986f43e168e
SHA256 9d6dafe61c9217cb67e3b15e7600d1708e3afa688dd8fde7407d4536538cdf87
CRC32 648a5399
Example file location C:\Windows\SysWOW64\