Error code 30045-27 In Microsoft Office 365/2021/2019 Installation

This article describes the Microsoft Office 365/2021/2019 installation Error code 30045-27 solutions. It was found that many users having trouble to repair or install office 365 programs on their Windows and Mac computers. The majority of issues are due to the Office licensing, Windows updates, insufficient system resources like disk space, internet connectivity, etc. So this article provides the solution for different kind of office issues related to installation program Error code 30045-27 .

Microsoft Office 365/2021/2019 Error code 30045-27 Returns following error messages:-

Something went wrong Error code 30045-27 Go online for additional help.

Office is Busy, There is a problem starting the Office Installation.

We are sorry, but we are unable to start your office 2021 installation program.

Sorry installation can’t continue because no compatible office 365 products are detected.

We are sorry, but we can’t verify the signature of files required to install your office 2019 product.

Internet connection needed. Office 2019 installation error code 30045-27 .

Background installation ran into a problem.

Something went wrong Error code 30045-27 Go online for additional help.

When operating system Something went wrong unable to add and/or remove the office 2021 products that you are requesting, It requests you to verify file’s signature that required to install the office 365/2019 product. Usually, returns error code series 300XX, 1xxx series depends on the cause of the issue.

office error code 30045-27

pic showing office error code 30045-27

Office is Busy, There is a problem starting the Office 365/2019 program Installation

It appears when you try to open any office is busy 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.

Office busy error in office 2010

Office busy error while repairing

We are sorry, but we are unable to start your office 365/2019/2021 installation program.

Unable to start a office 365 program is a common installation program error 30045-27 in a windows operating system that causes due to failed services of a office program. If there are Windows Installer services found to be not working, then you cannot install an Office 365/2021 product.

Sorry, we ran into a problem Error code 30045-27 -Sorry installation can’t continue because no compatible office products are detected.

A Microsoft Windows Operating system is released in two different bit versions depending on the hardware architecture such like 32 and 64. It is required to install relevant versions of 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.

No compatible office products detected

No compatible office products detected

We are sorry, but we can’t verify the signature of files required to install your office 365/2019 product.

An Office 365/2019 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 error message can’t verify The signature which says signatures of files required to install the office 2021 product.

Unalbe to verify signature of files

Unable to verify signature of files

Internet connection needed Microsoft Office 365/2021 program error code 30045-27

While you performing the online repair for your office 365 product this error message may occur due to internet problems. You can do a quick offline repair.

Also, Installation of Microsoft Office 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 office 365 program 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 Microsoft office 365/2021 installation Error code 30045-27 .

internet connection needed error message

Internet connection needed error message


Background Installation ran into a problem

This Background installation causes when your Office 365 installation program related files are corrupted. It is required to repair your Office 2021 program. In addition, we need to check for malware or virus related issues on your computer.

Office background installation ran into a problem

Pic : Office background installation ran into a-problem

Unable to start Office 365/2019/2021 installation program

This message explains that the office 365/2021 program has been stopped by your Windows. 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 cleanup programs, a system restore could help you to fix the same.

Diagnose your computer to fix Microsoft Office 365/2019 Error code 30045-27 :-

There are few ironically shown Office 365/2019 Installation Error code 30045-27 which require an immediate action. 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 program. There may be issues with the start up programs which can be checked under System Configuration.

Perform system file SFC scan:-

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, first Open command prompt (CMD) in admin mode and Run the command SFC/SCANNOW

Microsoft Office 365/2019/2021 program Installation Error code 30045-27 also can be fixed with this scan if they are not damaged much. If you see any file violations still exists after the scan then move to Event viewer to check what has caused the office 365/2019 program Error code 30045-27 . Watch video to know how to perform SFC SCAN to fix office 365/2021 installation Error code 30045-27 .

How to use Event viewer to check office error logs:-

Click on a start button.

Type “RUN” and open the Run command prompt.

Type “EVENT VIEWER” and press enter key to open Event viewer logs.

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

Now you can see many logs in the center panel.

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 Office 365 installation program Error code 30045-27 .

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

Steps to Fix the Microsoft office 365/2021/2019 installation n Error code 30045-27 :-

Sometimes office won’t install due to several reasons like internet connectivity, dependencies for the product or any virus that affected your computer files etc. Then all you have to do a clean program installation by removing traces of office 365/2021 program files existed from previous versions or by multiple office installation trails by you due to several errors.

Remove Temporary Files:-

In the process of installing office or any product on your windows machines, there are so many files gets created which are meant for temporary purpose for memory management, within application purposes like MDI etc.

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. Only a few files cant be deleted because of there are some application might be using them internally. Skip those files.

temp files deletion

Error code 30045-27 Fix- by removing Office traces from Program files :-

In some cases, Office 365 installation Error 30045-27 may stop because of several reasons like slow internet, server issues etc. Then your machine creates some of files required to office 365/2010/2016/2021 product.

When you try to re-install this time, You may see issues like these type of office 365/2021 Program Error code 30045-27 and different series based on the reason of failure.


office traces removing window

You have to delete these Office traces from the computer before trying re-installation process.

Repair/Uninstall office 365/2021/2019 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 2016 or 2013 products on a PC (laptop, desktop, or 2-in-1). For other versions of Office, including Office 2016 for Mac, or older versions of Office, see the section, Uninstall Office for Mac, Office 2010, or Office 2007 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 8 / Windows 11/10:-

Go to control panel from start button,

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)

From the list, search for Microsoft Office 365/2021 product and click on Change

A window will open like here showing Add, Repair, Remove options

Then proceed to with repair and wait for sometimes. Once the repair is successful you are ready to use Microsoft office 365/2019 product again.

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.

Installing Office 365/2019 Product:-

Once you have done the uninstallation part, now do a clean office 365/2019 program installation.

Login to your Microsoft office account

Go to your dashboard to see the product you purchased.

Select “Install Office “ option and then let it download, (you may see click Save, Run, Setup, or Save File depends on browser type, select “save” for future purpose)

Go to downloads in your computer and Double click on office setup file to install.

  • If the Microsoft 365/2019/2021 program installation Error code 30045-27 still persists then try an advanced registry fix if you are familiar with it.

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

To fix the Microsoft Error code 30045-27 in office 365/2010/2016/2021/2019 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.

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

Chat with our technician to fix your computer issues Now!


Related issues to error code 30045-27 in Office 365, 2010/2013:

Error code 30089-4,Error code 3-4,Error code 30033-4,Error code 30088-15,Error code 30145-27,Error code 30094-1,Error code 30145-13,Error code 30175-12,Error code 30126-1011,Error code 30102-13,Error code 30013-39,Error code 30043-11,Error code 30102-11,Error code 30045-13,Error code 30050-13,Error code 30058-26,Error code 30045-14,Error code 30088-8,Error code 30145-16,Error code 3033-27,Error code 30033-27,Error code 30125-9 (500),Error code 30182-1015(4),Error code 30015-1025(1392),Error code 30033-27,Error code 30088-13 ,  Error code 30068-4 (3),Error code 30183-4,Office error code 30103-13, Error code 30126-4,Error code 30183-4,Error code 30183-1011(1),Error code 30180-4,Error code 30175-4,Error code 30175-13,Error code 30174-4,Error code 30169-22,Error code 30145-4,Error code 30145-16,Error code 30145-13,Error code 30143-37,Error code 30125-4,Error code 30125-1011,Error code 30103-11,Error code 30102-13,Error code 30102-11 ,Error code 30094-4,