Fix error that occur when you start an Office installation

Anoop C Nair is Microsoft MVP! He is a Device Management Admin with more than 20 years of experience (calculation done in 2021) in IT. He is Blogger, Speaker, and Local User Group HTMD Community leader. His main focus is on Device Management technologies like SCCM 2012, Current Branch, and Intune. He writes about ConfigMgr, Windows 11, Windows 10, Azure AD, Microsoft Intune, Windows 365, AVD, etc.

Have you ever gotten this error message? Microsoft tells you, “Sorry, something went wrong,” but you don’t know the best, most effective way to troubleshoot the problem.

We know this error can be frustrating. If you’ve gotten the “something went wrong” error during an Office 365/Office 2013 (or 2016) installation, we want to help!

First, go to this Microsoft troubleshooting article and run the “Fix it” tool.

This automated tool will take you through a process of uninstalling Office so you can re-install a clean version. Tip: we’ve seen the advice to NOT use Internet Explorer to run the tool, but rather another browser like Chrome or Firefox, so you can keep it running even when other Windows applications need to close.

Be sure to select “Apply this fix” when offered. Once you’re done running the Fix it tool, restart your computer and try re-installing Office.

Often, this fix will suffice. If not, move on to alternate methods:

  • Check your internet connection. Make sure you’re not on a limited connection and your router’s firmware is up to date (to do this, you may need to check with your router manufacturer).

Hopefully you’re on your way with Office! But if these solutions don’t work, you can find more detailed instructions in this Microsoft support article.

Just for those in my situation: None of what is in this "How to fix" apply...at all. Fist off, I am getting this dreaded error (Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The file C:\Users\user\AppData\Local\Microsoft\Outlook\user.ost is not an Outlook file (.ost).) is zero in size while doing a clean install of Outlook 2016. Using a Win 10 laptop remotely. The ".ost" file is being created for the first time (I've uninstalled and removed all traces of Outlook 2016 or Office 2016, for that matter, several times). I have and can run Outlook 2013, connecting cleanly via the manual settings no longer allowed under 2016. Yes, the ".ost" file is corrupted, but the corruption is while being created by the Outlook 2016 program itself. There isn't a fixing tool that can correct it. It seems that Microsoft has to screw with anything that works in order to frustrate everyone into using the junk they are trying to force down the throats of the marketplace. (For those who wonder why this being done on a Win 10 machine, that was a no choice situation forced by Microsoft and Lenovo.)

Reply

When you try to install Microsoft Office you may get an error message “Couldn’t start Office installation. We’re sorry, but we could not start your Office installation. Another installation is in progress, please try again later.“

“Couldn’t start Office installation” usually occurs if another installation, updation, or uninstallation was running before you attempted to install Office. You cannot run multiple instances of the same program to install or uninstall it. The installer will conflict with each other and prompt errors on the screen.

Error Message

Couldn’t start Office installation. We’re sorry, but we could not start your Office installation. Another installation is in progress, please try again later.

  • Error Code 0-1018(0)
  • Error Code 17003-2031
  • Error Code 0-2035(0)

Causes of Couldn't start Office installation

“Couldn’t start Office installation” occurs when another instance of the same program is conflicting with the office installation. We might see this error prompt with error code 0-1018(0), 17003-2031 or 2035-0 during office installation process.

  • Multiple instances of the same program confliction
  • Incomplete, partial, failed repair, installation, change, or removal of a previous Office suite can prevent from installing a newer version.
  • Previous version of an Office suite is blocking the installation

Resolution of "Couldn't start Office installation"

We have made a list of resolutions that can fix the Error “Couldn’t start Office installation”. Performing the below-mentioned solutions and workarounds helps us to resolve the error “Couldn’t start Office installation”.

  • Close other Office Processes
  • Restart your computer and reinstall Office
  • Office Installation in Clean Boot
  • Install Office using the Offline Installer
  • Remove Other Office Versions

Solution
1

Close other Office Processes

You might have another installation running in the background, and conflicting with the new installation you are initiating. This might prompt for the “Couldn’t start Office installation. Another installation is in progress” error during office installation.

To fix this error, you need to stop the other installation processes using Task Manager.

  • Press Ctrl + Shift + Esc to start Task Manager.
  • Locate the Office installation process running in the background
    • Office installation processes are usually IntergratedOffice.exe and Microsoft Click-to-Run.
  • Right-click on the process and click on End Task from the menu

Fix error that occur when you start an Office installation

Now try to initiate the office installation and it should work like charm.

Solution
2

Restart your computer and reinstall Office

The most common scenario is that the other office background processes are conflicting with the Office installation process and causing the Error “Couldn’t start Office installation”. Try restarting your device and reinstalling Office once the device is up and running.

Solution
3

Office Suite Installation in Clean Boot

Office installation can also be interrupted if third-party services are conflicting with the office program which can result in Error “Couldn’t start Office installation”.
Consider performing Clean Boot to disable all startup programs and services on the computer. Also, consider disabling unwanted software’s which can conflict with the office suite. Try installing the office after starting the computer with minimal set of services, drivers, and startup programs to avoid other programs interfering with office installation.

Perform Clean Boot in Windows

Perform Clean Boot in Windows10, 8.1 and 8

  • Press Windows Key + R to open Run command, type msconfig.msc and click Ok. Or Open Control Panel –>Administrative Tools–>System Configuration

Fix error that occur when you start an Office installation

  • On the Services tab of the System Configuration dialog box, tap or click to select the Hide all Microsoft services check box, and then tap or click Disable all.
  • On the Startup tab of the System Configuration dialog box, tap or click Open Task Manager
  • On the Startup tab in Task Manager, for each startup item, select the item and then click Disable
  • Close Task Manager.
    On the Startup tab of the System Configuration dialog box, tap or click OK, and then restart the computer.

Fix error that occur when you start an Office installation

Consider installing office after restarting the device.

Perform Clean Boot in Windows 7

  • Press Windows Key + R to open Run command, type msconfig.msc and click Ok. Or Open Control Panel –>Administrative Tools–>System Configuration
  • On the General tab, click the Selective startup option, and then click to clear the Load startup items check box
  • On the Services tab, click to select the Hide all Microsoft services check box, and then click Disable all.
  • Close Task Manager.
    On the Startup tab of the System Configuration dialog box, tap or click OK, and then restart the computer.

Fix error that occur when you start an Office installation

Consider installing office after restarting the device.

Solution
4

Install Office using the Office Offline Installer

The Office offline installer may help in bypassing the potential firewall, proxy, antivirus, or Internet connection issues that might occur during an Office installation as we will be downloading the Offline installer ISO file to install office to avoid error “Couldn’t start Office installation”.

Steps to Download Office Offline Installer File

Please visit www.office.com/myaccount to download the office offline installer. We need to make sure that we are using the same account which is associated with our copy of office.

If we are not signed in with the Microsoft account associated with our copy of Office, we need to sign in now. If we are signed in with a different account, we need to sign out from that account and sign in again with the correct Microsoft account.

Once we logged in, we will find My Office Account Homepage with your subscription account information and the place we normally go to download the standard online Office installer.

  • From the My Office Account Home page, click the Install button.

Fix error that occur when you start an Office installation

  • From the Install page, click “Language, 32/64-bit, and other install options.”

Fix error that occur when you start an Office installation

  • Language and Install Options: This is the section from where we can manually select to download Office in Language other than Operating System Configured language. We can also opt for the 64-bit version of office instead of normal 32 bit.
    • Offline Installer: From the Office Installer section, select desired language and click on Download offline installer.

Fix error that occur when you start an Office installation

Solution
5

Remove Other Office Versions

Office installation can also be interrupted due to erroneous residual files during the installation or un-installation of previous versions of Microsoft office which can cause error “Couldn’t start Office installation”.
Consider removing Microsoft Office versions installed in the device and try to reinstall the Office program. You can reinstall the other office versions once the office installation is finished.

Uninstall Office from the Control Panel

  • Press Windows Key + R to open Run command, type appwiz.cpl and click Ok. Or Open Control Panel –>Programs
  • Right-click on the Microsoft Office product, and choose Uninstall.
  • Follow the instructions on the screen.

Fix error that occur when you start an Office installation

Uninstall Office using Microsoft Easy Fix Tool

Try running Microsoft Easy Fix tool to completely remove Office from the device.

Download Microsoft Easy Fix Tool

Reference: Microsoft Article for uninstalling Office

Consider installing office after restarting the device.

We’ve compiled all the resolutions and workarounds verified by the experts to fix the mentioned error. These resolutions and workarounds helped the users to fix the error on their system. Try implementing these resolutions on your computer and if the preceding suggestions fail to solve the error, please feel free to Ask an Expert.

Frequently Asked Questions

  1. What is Error Couldn't start Office installation?

    "Couldn't start Office installation" occurs when another instance of the same program is conflicting with the office installation.

  2. How do I download Office offline installer?

    Visit www.office.com/myaccount and log in to your account. From the Office home page select Install Office. Run the downloaded office installation file and folow the instructions.

  3. What is Office Error Code 0-1018(0)?

    Office error code 0-1018(0) occurs when another instance of the same program is conflicting with the office installation.

    How do I fix Microsoft Office installation error?

    If you encountered a problem while installing Office on a PC, try restarting your computer and then attempting to install Office again. If that didn't help, use this easy fix tool to uninstall Office completely. After your uninstall is complete, try reinstalling Office.

    How do I fix Outlook error 0xC0000142 and Office error 0xC0000142?

    You might see Error 0xC0000142 when you start an Office application..
    In the search box on the taskbar type type Task Scheduler..
    Expand the Task Scheduler Library and select Microsoft > Office..
    In the the middle window find Office Automatic Updates 2.0. Right-click it and select Run..

    How do I fix Office application error 0xC0000142?

    The 0xc0000142 error is a Microsoft Office-related issue that can occur when trying to launch one of the applications from the suite. Tthis error can be fixed by simply restarting the computer. However, if the problem persists, it may be necessary to perform a clean install of Microsoft Office.

    How do I fix Office 2010 installation error?

    To do this, follow these steps:.
    Right-click the Office 2010 Setup.exe file. ... .
    Click Properties..
    Click the Compatibility tab. ... .
    Click to clear the Run this program in compatibility mode for check box..
    Click Apply, and then click OK..
    Double-click Setup.exe to install Office 2010..