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This article describes the Microsoft Office error code 12002-4 solutions. It was found that so many users having trouble repairing or installing Office programs on their Windows and Mac computers. Most of the issues are due to the Office365/2021 licensingWindows updates, and insufficient system resources like disk space, internet connectivity, etc. So, it is providing solutions for different kinds of office program issues related to error code 12002-4.

Analyze Your Computer to Fix Error Code 12002-4: –

There are few ironically show Office error code 12002-4 which is required immediate action. There will be a log for every action on your system that records all the events. It is termed as an Event viewer. This is a Windows Inbuilt office programs under a system tools, it provides all the information for the problem causing keys.

This could cause due to the failure with your Windows related services and the executable office file is unable to read the required files when you try installing Office. There may be issues with the start-up office programs which can be checked under System Configuration.

Check List Before you attempt a fix this office Error code 12002-4:

Pending office updates: –

Windows updates are released to update security patches within your Windows Operating system. Since this inspection of Microsoft Windows, it office tracks the new updates are available on Microsoft Chatlog database and downloads all the important and optional office updates.

Important updates are driven by Microsoft developer community to enhance the product and security. Optional updates are specified for third party products like attached hardware or it can be some third-party non-Microsoft Software. These optional updates are primarily sent by the manufacturers to Microsoft office to get certified and these signed drivers are sent along with the windows updates which improve the computer automatically

windows 11 update

Perform System office File Scan: –

System files are scanned in short SFC scan is windows inbuilt office program to fix altered/modified and damaged files of the operating system. It can fix several updates failures, other violations done by several mismatched office files.

To Run system office file scan in your windows operating system, first Open command prompt (CMD) in admin mode and run the command SFC/SCANNOW


Office 365 error code 12002-4 also can be fixed with this scan if they are not damaged much. If you see any office file violations still exists after the scan, then move to Event viewer to check what has caused the office error code 12002-4.

 Watch this video to know how to perform SFC SCAN to fix office error code 12002-4.

How To Use Event Viewer to Check Office Error code 12002-4 Logs: –

Initially, it is important to understand how the event viewer works. Event viewer is an inbuilt feature of Windows Operating system to register the logs of your office programs. In case of any errors or failures on any office program, the event viewer supports you to open and check the event logs during such incidents. These logs will notate the failure reasons and can show you the trouble error code 12002-4.

Thus, these event logs can be analyzed by a technician to assist you properly on your computers. If a technician. This event viewer shows the logs in different types like critical, information or error.

event viewer

  1. Press k on a start
  2. Type “RUN” and open the Run command prompt.
  3. Type “EVENT VIEWER” and click enter key to open Event viewer logs.
  4. Double click on “windows logs” from the left-side panel and select “application“.
  5. Now you can see many logs in the center panel.
  6. Filter the logs to find office related issues and warnings by selecting Filter current log option from the Right-side panel.
  7. Find any critical, error logs the caused code 12002-4.

If you can’t find any reasons for the issues, then just take a chance to do a clean office installation to save your time.

Steps To Fix the office Error Code 12002-4: –

Sometimes office won’t install due to several reasons like internet connectivity, dependencies for the product or any virus that affected your computer office files etc. Then all you must do a clean installation by removing traces of office program files existed from previous versions or by multiple office installation trails by you due to several errors.

Repair/Uninstall Office installation Program: –

Applies To: Office 2019, for business, Office 365 Admin, Office 365 Small Business Admin, Office 2021

The following steps explain how to uninstall Office 2019 or 2021 products on a PC (laptop, desktop, or 2-in-1). For other versions of Office program, including Office 2019 for Mac, or older versions of an Office, see the section, Uninstall Office for Mac, Office 2019, or Office 2021 below. Try uninstalling Office using the Control Panel first. If it is not working, use the easy fix tool or try uninstalling Office program manually.

For Windows 8 / Windows 8.1/10: –

  1. Go to control panel from start button,
  2. Select Programs and features there to reach a list of installed office programs on your computer. (In windows 10 you can just type “programs and features in the Cortana search bar beside windows 10 start logo)
  3. From the list, search for Microsoft Office product and press on
  4. A window will open like here showing Add, Repair, Delete options.
  5. Then proceed to with repair and wait for sometimes. Once the repair is successful you are ready to use Microsoft office product again.

To uninstall following the first 4steps from repair process and choose to Delete instead of repair.

IMPORTANT. It is impossible to uninstall office installation program applications (word, excel, publisher etc) individually from total office products. The only way to uninstall an individual app is if you purchased it as a stand-alone versions.

Installing Office Product: –

Once you have done the uninstallation process, now do a clean -up office program installation.

  1. Login to your Microsoft office account in
  2. Go to your dashboard to see the office product you purchased.
  3. Select “Install Office “option and then let it download, (you may see press SaveRunSetup, or Save File depends on browser type, select “save” for future purpose)
  4. Go to downloads in your computer and double press on office setup file to install.

If the error code 12002-4 persists, then try an advanced registry fix if you are familiar with it.

Windows Registry Fix: –

The registry fix in Windows is a console that shows the structure of your Windows Operating system and its internal office programs. The Hex codes inside the registry may change due to some unwanted conflicting office programs which use the same resources.

To fix the error code 12002-4 in office 365/2019/2021 you need to delete the altered Office Registry keys or remove and re-create the keys with previous values. (HEX CODE or H-KEYS).

Note: Don’t do Registry fix changes if you are not aware of the structure as it damages applications with one single change. Sometimes damages your computer operating system.

Office Error Code 12002-4 Returns Following Error Messages: –

    • Something went wrong Error code 12002-4 Go online for additional support.
    • Office is Busy, there is a problem starting the Office program Installation.
    • We are sorry, but we are unable to start your office program.
    • Sorry office program installation can’t continue because no compatible office products are detected.
    • We are sorry, but we can’t verify the signature of office files are required to install your office product.
    • Internet connection needed for Office error code 12002-4.
    • Background office installation ran into a problem.

Something went wrong Error code 12002-4 Go online for additional support: –

When operating system unable to add or delete the office products that you are requesting, it requests you to verify the office files signature these are required to install the office product. Usually, returns error code 300XX, 1xxx series depends on the cause of the office issue.

Something Went Wrong

Office is Busy, There is a problem starting the Office program Installation:-

It occurs when you try to open any office programs like word, excel etc., and the office already in progress .it gives a message “we are either updating or helping you or remove some programs.

Office is busy

We are sorry, but we are unable to start your office program: –

Unable to open an office program is a common error code 12002-4 in a windows operating system that causes due to failed services of an office installation program. If there are Windows Installer services are not found working, then you cannot install an Office product.

Sorry office installation can’t be continued because no compatible office products are detected: –

A Microsoft Windows Operating system is released in two different type of bit versions depending on the hardware architecture such as 32 and 64. It is required to install relevant versions of office suitable for the Windows Operating systems. In the case of any mismatch versions are selected, you can see this error 12002-4 message that says no compatible office products are detected.

We are sorry, but we can’t verify the signature of files required to install your office product:-

An Office product is available in different forms like a disc or a press to run. In case of a disc failure, you might see this error code 12002-4 message which says signatures of office files are required to install the office product.

can't Verify Signature

Internet connection needed for Office error code 12002-4: –

The Internet is one of the requirements for doing office press to run the office installation. If there are any intermittent connections, your system may not respond correctly, and it may cause different issues with office installation or windows updates. This will be turn fails your office installation program to start and working correctly. 

Also, Installation of Microsoft Office is required an internet connection depending on the version. The latest Office 365/2021 suite comes with a press to run version which is a small setup file when you press on it, that would start the office installation by downloading all the required files for the office program. In this case of an intermittent connection or some connectivity failures, you might end up seeing this error 12002-4.


Internet Connection

Background office Installation ran into a problem.

This causes when your Office installation program related files are corrupted. It is required to repair your Office program. In addition, we need to check for malware or virus-related issues on your system.

Unable to start Office installation program: –


An Office installation programs are used in the services from Windows operating system to start and function correctly. There are so many dependencies with system files and their office services. In case of any failure in such a system service or the system files, there are chances that your office program may not start correctly. It is required to find and fix the Windows services to make sure office services are functioning correctly.


Take a support from Online experts regarding any unresolved office issues on your computer.

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