Fix combase.dll Errors

Sometimes Windows system displays error messages regarding corrupted or missing combase.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 combase.dll file can therefore effect in failed execution of the started process.

combase.dll file Microsoft COM for Windows. 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 combase.dll related errors on your device. You can also download combase.dll file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

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

File info

General information
Filename combase.dll
File extension DLL
Description Microsoft COM for Windows
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.)

There are various types of errors related to combase.dll file. combase.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 combase.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

  • combase.dll is corrupted
  • combase.dll cannot be located
  • Runtime Error - combase.dll
  • combase.dll file error
  • combase.dll file cannot be loaded. Module was not found
  • cannot register combase.dll file:
  • combase.dll file could not be loaded
  • combase.dll file doesn't exist



Application could not be started because combase.dll file is missing. Reinstall the application to solve the problem.


Problems related to combase.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 combase.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.

combase.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 combase.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 combase.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 combase.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 combase.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the combase.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 combase.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 combase.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 combase.dll file

The last solution is to manually download and replace combase.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 combase.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of combase.dll file example directory paths.

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\

If the steps did not solve your combase.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 combase.dll
System Windows 10
File size 2328984 bytes
Date 2017-03-18
File details
MD5 13ec9a8c00b8fa29ffe73232ec406dcc
SHA1 83e864b49a7dc87fdfeef88ccc60b932bf3a9c14
SHA256 f69d29213912abb2b18ea0ea0f6f7de631b1098db44319071bf3e9bcd9ee9cf0
CRC32 fffa1e2e
Example file location C:\Windows\System32\
Filename combase.dll
System Windows 8.1
File size 1564464 bytes
Date 2014-11-21
File details
MD5 33f50bfd715a530b9ed683c6be108a74
SHA1 e81bdd113309f6e13c3be7892584356d72bebe79
SHA256 87bf8f25cc995cdb2be43bcea6cd20113917463e2d4cb1eac01fd4b5e11e248a
CRC32 8aa97e7a
Example file location C:\Windows\System32\
Filename combase.dll
System Windows 8
File size 1247232 bytes
Date 2012-07-26
File details
MD5 55bf5f3dc8510b862c38b98b1c1d030d
SHA1 245e56c0d2396c7e8f094bff01443f749983db0d
SHA256 63d3a624be1c4bf96a74bc3ce08cb25e43d0f0dd82d307d7a74977e805f9e8b8
CRC32 397e47c6
Example file location 1: C:\Windows\System32\