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Microsoft 365 Install Error Code 30145-4?

This article describes the Microsoft Office error code 30145-4 and Error code 30147-45  was found that many users having trouble repairing or install office programs on their Windows and Mac computers.

The majority of issues are due to Office licensingWindows updates, insufficient system resources like disk space, internet connectivity, etc.

So this article provides the solution for different kinds of office issues related to Error Code 30145-4 and 30147-45 When Installing Office.


Error Code 30145-4

Office 365/2021/2019 error code 30145-4 returns the following error messages

  • Something went wrong Error code 30145-4 Go online for additional help
  • The office is Busy, There is a problem starting the Office Installation
  • We are sorry, but we are unable to start your program
  • Sorry installation can’t continue because no compatible office products are detected
  • We are sorry, but we can’t verify the signature of the files required to install your office product
  • Internet connection needed. Office error code 30145-4
  • Background installation ran into a problem

Something went wrong Error code 30145-4 Go online for additional help

When trying to start an Microsoft 365 or Office 2021/2019/365 application, you will get this error stating “Something went wrong“. If the operating system is unable to add and/or remove the products that you are requesting, It requests you to verify the file’s signature that required to install the office 365 product. Usually, returns error code series 300XX, 1xxx series depends on the cause of the issue.

Office is Busy, there is a problem starting the Office Installation

The error “Office is Busy” appears when you try to open any office 2021/2019/365 program like word ,excel etc, and the office already in progress. It gives a message we are either updating or helping you add/ or remove some programs.

We are sorry, but we are unable to start your program 

We are sorry, but we are unable to start your program is a common error in a windows operating system that causes due to failed services of a Microsoft 365 or office 2021/2019/365 program. If there are Windows Installer services found to be not working, then you cannot install an Microsoft Office product.

Sorry, we ran into a problem Error code 30145-4 and office error 30147-45 – Sorry installation can’t continue because no compatible office products are detected

Windows will show a message stating that your PC ran into a problem and needs to restart. A Microsoft Windows Operating system is released in two different bit versions depending on the hardware architecture such as 32 and 64. It is required to install relevant versions of the office suitable for the Windows Operating systems. In case of any mismatch in the versions selected, you can see this error message that says no compatible office products are detected.

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

An Office product package is available in different forms like a disc or a click to run. In the case of a disc failure, you might see this We are Sorry, But We Can’t Verify the Signature error message which says signatures of files required to install the Microsoft 365 or office 2021/2019/365 product.

Internet connection needed to fix the Office error code 30145-4

While you performing the online repair for your office product this error message may occur due to internet problems. You can do a quick offline repair. Also, Installation of Microsoft Office 2021/2019/365 requires an internet connection depending on the version.

The latest Office 365 suite comes with a click to run version which is a small setup file when you click on it, that would start the installation by downloading all the required files for the program. In the case of an intermittent connection or some connectivity failures, you might end up seeing this Error Code 30145-4 Office 2021

Background Installation ran into a problem

Background Installation Ran into a Problem generally pops up when your Office 365 program related files are corrupted. It is required to repair your Microsoft 365 program. In addition, we need to check for malware or virus related issues on your computer.

Unable to start an Office program


This message explains that the office program has been stopped by your Windows and unable to start the Microsoft 365 or office 2021/2019/365 program. The computer must be scanned using Windows system file scan process. This also shows that Office related files are missing from Program folders. If this happened recently with any of your clean up programs, a system restore could help you to fix the same.

Check your system to fix Error 30145-4 and Error 30147-45 When Installing Office

There will be a log for every action on your computer which records all the events. It is termed as an Event viewer. This is a Windows Inbuilt program under 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 file is unable to read the required files when you try installing Office 365/2021/2019.

Perform system file scan to fix Office 30145-4 and Office 30147-45

System file scan in short SFC scan is windows inbuilt program to fix altered/modified and damaged files of the operating system.

 It can fix several updates failures, other violations done by several mismatched files.

To Run system file scan in your windows operating system

  1.  First Open command prompt (CMD) in admin mode and
  2.  Run the command SFC/SCANNOW



If you see any file violations still exists after the scan then move to Event viewer to check what has caused the office error code 30145-4.

How to use Event viewer to check office error logs

  1.  Click on a start button
  2.  Type “RUN” and open the Run command prompt
  3.  Type “EVENTVWR” and press enter key to open Eventvwr logs

4. Double click on “windows logs” from the left-side panel and select “application “.


5. Now you can see many logs in the centre 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 error code 30175-11 office 2019.

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


Installing Microsoft 365 or Office 2021/2019/365 Product

  1. Once you have done the uninstallation part, now do a clean installation
  2. Login to your Microsoft office account
  3. Go to your dashboard to see the product you purchased
  4. Select “Install Office “ option and then let it download (you may see click SaveRunSetup, or Save File depends on browser type, select “save” for future purpose)
  5. Go to downloads in your computer and Double click on office setup file to install
  6. If the error code 30145-4 still persists then try an advanced registry fix if you are familiar with it.

Remove Temporary Files

Under normal conditions, these files are closed and deleted by Windows when you quit a Windows session. However, if you quit Windows in an irregular way (for example, restarting the computer or turning it off during an active Windows session) the files are not closed or deleted.


To remove temporary files, Follow these steps



  • Click on windows start button + “R” to open the run command window
  • Type “%temp%” and click on the enter button, this leads to a window with temp files and folders
  • Select all (CTRL+A) “Shift + Delete” to remove permanently
  • There may be some files requires admin permission to remove, Just click on ok

Repair/Uninstall office program

Applies To – Office 2016, Office for business, Office 365 Admin, Office 365 Small Business Admin, Office 2013


The following steps describe how to uninstall Office 2019 or 2021 products on a PC (laptop, desktop, or 2-in-1).


For other versions of Office, including Office 2019 for Mac, or older versions of Office, see the section, Uninstall Office for Mac, Office 2019, or Office 2021 below.


Try uninstalling Office using the Control Panel first. If that doesn’t work use the easy fix tool or try uninstalling Office manually.

For Windows 10 / Windows 11

  1. Go to control panel from start button
  2. Select Programs and features there to reach a list of installed programs on your computer (In windows 10 you can just type “programs and features in the Cortana search bar beside windows start logo)
  3. From the list, search for Microsoft Office product and click on Change
  4. A window will open like here showing Add, Repair, Remove 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.
  6. To uninstall follow the first 4 steps from repair process, and choose to Remove instead of repair

IMPORTANT –. It’s impossible to uninstall office applications (word, excel, publisher etc) individually from total office product. The only way to uninstall an individual app is if you purchased it as a stand-alone version.

Windows Registry Fix

The registry in Windows is a console that shows the structure of your Windows Operating system and it’s internal programs.


The Hexa codes inside the registry may change due to some unwanted conflicting programs which use the same resources.


To fix the error code 30145-4 in office 365/2021/2019 you need to delete the altered Office Registry keys or remove and re-create the keys with previous values. (HEXA CODE or H-KEYS).


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


At last, if you are still not able to resolve this issue Error Code 30145-4. I am sure they will help you resolve this issue. If you like to see the procedure for paid support, to clarify, you may ask the Tech Available online.


Take a support from Online experts regarding any unresolved issues on your computer.Chat with our technician to fix your computer issues Now!

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